WATER SYSTEMS

A GRAVITY FLOW TANK, where possible, is the best domestic water supply. Water is pumped to, and flows back from, a large tank uphill from the house. The tank should be at least 22 feet higher than the point of use, to get 10 pounds or more water pressure (2.3 feet elevation per pound of pressure). It should be buried to keep cool and avoid freezing. There was no hill above us to site a tank so we put four 100 gallon tanks at the highest heated level (4th floor) of our tall house. Pressure is only 7 pounds at our 2nd floor kitchen, but with 3/4" and larger pipes, and no small restrictive couplings to the faucets, we get good flow and fine showers on the 1st and 2nd floors. NOTE: Instant (tankless) gas water heaters require at least 12 to 15 pounds of pressure to operate properly.

A PRESSURE TANK stores pressurized water without an uphill or elevated tank. A pump pushes water into the tank and that compresses captive air in the tank. The air provides continuous pressure for water delivery. The pump recharges water to the pressure tank as needed. Since pressure tanks are small, they need refilling often. An inverter powered 110 volt AC deep well pump or DC powered surface pump can refill the tank as frequently as needed. Pressure tanks in sizes from 20 to over 80 gallons are sold at hardware and plumbing stores.

LARGER WATER STORAGE What if your AC pump must be high powered and 240 volt so it can run only on generator power? A larger water storage tank is needed so you can start the generator only once a day or once a week to refill it, rather than starting it each time water is used. Large volume water storage, when no uphill tank is possible, can be done two ways:

• Use several pressure tanks, enough for a day's water from one filling.

• Use a large buried tank near the house (or on a tower in non-freezing climates). This tank is filled by the well pump once a week or less often, using either a slow DC or fast AC pump. A second DC powered pump uses this tank to refill a small pressure tank in the house as often as needed as you use water. This eliminates starting an AC pump often, or waiting for a slow DC submersible well pump to refill the pressure tank.

 Depth of your well or water source determine the type of pump.

SHALLOW WELLS, surface spring, creek or storage tank where the water surface is within 10 feet below ground can use the Flowlight Booster or Solar Force pumps as well as Shurflo's AC and DC powered diaphragm pumps located at the surface which can suck the water up to the pump, then push it up to 100 feet higher than the source and great horizontal distances. These pumps can take water from a shallow well or large storage tank and pressurize a tank in your house for better delivery of water to your fixtures. Each pound pressure rating of a pump gives 2.3 feet vertical lift. Surface pumps must be protected from freezing. They can often be a hassle to keep primed.

DEEP WELLS 15 to 200 feet down to the water level cannot have the water sucked from the top of the well. Suction can lift water only about 15-20 feet. For deeper distance to water the pump must reach down to PUSH the water up.

DC POWERED submersible deep well pumps are often the best choice because they do not require large bursts of power or use the inverter at all. DC submersible pumps use only 20% as much energy per gallon of water pumped as an AC centrifugal pump. Most pump very slowly, so do not deplete the water level in a slow recovery well. They can be powered direct by solar modules, without batteries. Or they can be powered by house batteries, like any DC appliance, if the pump is within about 200 feet of the house. The submersible pump will not freeze or lose its prime.

AC POWERED centrifugal pumps are faster and last many years with no repairs. But they use 4 to 8 times the power per gallon pumped than slower DC pumps. AC pumps use much of the full capacity of the inverter, and come on at unpredictable times. Pumping and running a washer at the same time may require a relay to pause the washer, giving the pump priority when it runs. A submersible deep well pump of 1/3 or 1/2 horsepower with 120 volt motor can pump a 300 foot well and be powered by a 2500 watt or larger inverter.  If you use an AC pump, get 110 volt, 1/2 horse maximum, with external starting box. The start box must be relay start control, not solid state control, for non-sine wave inverters. Solid state start works with true sine wave. No surge, or soft-start pumps, like the Grundfos SQ series are best, if depth of water in the well is within their range.

VERY DEEP WELLS with water level down the hole more than 230 feet from the surface need a higher power pump. The Grundfos SQ Flex submersible pumps are AC or DC powered (battery, inverter, or PV direct) and can lift more than 600 feet. Or a 240 volt AC submersible pump might be used  to fill a large  once a week operating on generator power, or a large inverter and transformer, or two large inverters.

WATER PUMPING QUESTIONS

 Backwoods Solar designs and sells hundreds of deep well submersible pumping systems each year and with every system, we ask the same questions. In order to properly satisfy your water pumping needs, we need the following information from you:

 1) How deep is your well or alternative water source

 2) What is the static water level in the well (the static level is that height in the well to which the water rises under it’s own pressure)

 3) How many gallons per minute does your well produce

 4) How many gallons per day do you need

 5) Will you pump to a non-pressurized holding tank or to a pressure tank

 6) In either situation, how many feet above the well head is the tank located

 7) If a pressure tank is used, how many pounds of pressure will you ask the pump to create

 8) Will you power the pump directly from a PV array which implies you only get water when the sun shines or

 9) Will the pump be powered by a battery bank either DC direct or with AC from an inverter

 10) If PV direct, how many feet from the array to the well head

 11) If battery based, how many feet from the battery system to the well head

 Given this information, we can quickly and successfully build an appropriate water delivery system for you. For those of you developing a well, or a spring, or other submersible situation, take a moment to cut out this article; fill in the blanks; and then give us a call. We’ll happily walk you through the details!

AC SUBMERSIBLE WELL PUMPS

GRUNDFOS SQ series PUMPS- 120 volt AC Submersible Pump
NO START SURGE
Deep well up to 180 feet depth to water 

The Grundfos SQ pumps have SOFT-START electronic control built into the motor. Start up is slow and gentle over 2 seconds, requiring NO SURGE POWER.  This pump runs off of much smaller generators(1700 watt or larger) or inverters(1200 watt or larger) of any wave form, and can have longer wire runs to the pump. SOFT-START also eliminates start-up twist and strain on plastic pipe installations. 24 month warranty.

Dry-run protection and over/under voltage protection are built in. Two wire operation, no control box required. The pump body is smaller, 2.68 inch diameter, so it fits down a 3" or larger well pipe. These can operate in any position from horizontal to vertical and can pump from a storage tank

Total lift of any pump is height between water surface down the well to the elevation where water is delivered to a non-pressurized tank. SQ pumps offer less total lift than the standard Grundfos pumps below. Reduce maximum lift by 92 feet if used to pressurize a bladder tank to 40 PSI. 

5S models have 1 inch discharge port; 10S & 15S models have 1-1/4 inch port.  Ask for a complete performance chart to aid in your selection.
Does not tolerate sandy water, voids warranty.

PUMP MODEL	PUMP HP	GPM @  FEET of Lift: NO PRESSURE Tank	MAX FEET OF LIFT TO 40psi TANK
P-5SQ05A-180	1/2	5 gpm @ 180'	88 ft.	$774
P-10SQ05A-160	1/2	10 gpm @ 160'	68 ft.	$774
P-15SQ05A-110	1/2	15 gpm @110'	18 ft.	$774

Shipping $20 within lower 48 states.
P-GFWARRANTY + LA-302AC lightning arrestor (required for extended warranty): extended to 5 years...$85

This is the ultimate submersible pump for water  lifts of up to 820 feet. They can be directly powered by solar or wind or can be run on an inverter, a generator, a battery or the utility grid, or any combination of these sources. Virtually any source of power, 30-300 VDC and 90-240 VAC can be used to run the pump, and with the name Grundfos on it, you know it is built to last and is maintenance-free. The SQFlex will fit into a 3” or larger well. Helical rotor pumps for high head applications and centrifugal pumps for low head applications assure a pump that is efficient for any application. The SQFlex has built-in protection from dry-running, overload and overheating.

The SQFlex pump can run on a solar arrays starting at 129 watts. The array must have an operating voltage over 30 volts. The array can be made with any combination of  3 or more 12 volt nominal modules in series.

24 month warranty.

Optional Controls

The CU200 interface box communicates with the pump and monitors operating conditions. Built-in diagnostics indicate faults and dry-running, display operating status, power consumption and level switch input.

The Level Switch interfaces with the CU200 control to turn off the pump when a tank is full.

The IO100 is a simple control box with cable terminations and a manual on/off switch. It is a great interface between a solar array and the pump to allow you to turn off the high voltage array when working on the pump.

The IO101 is an interface for using AC backup on a solar pump. An automatic transfer switch disconnects the solar array when AC power from a generator, utility connection or inverter is present. When AC power stops, it automatically reconnects the array to let the sun continue pumping.

Deep well up to 300 feet depth to water surface; 120 Volt AC pump runs on most 2,000 watt or larger, inverters.

1/3 HORSE to 220 feet
Over 220 feet lift to non-pressure tank, or 128 feet to 40 pound pressure tank.

1/2 HORSE to 300 feet
Over 300 feet lift to non-pressure tank, or 208 feet to a 40 pound pressure tank.

All stainless steel pump fits down a 4" well casing. All are 3-wire pumps & separate start control box, best for inverter use. We tested the pumps running on a 2500 watt 12 volt modified wave inverter. The 1/3 horse(no longer available) ran on 65 amps from the battery with 200 amp starting surge. The 1/2 horse ran on 115 amps with 250 amp starting surge. A 24 volt inverter uses half as many amps.

 Models below have a 5 gallon per minute pump stack for maximum feet of lift. For less lift, the same motors move water with other available model pumps for 7, 10, 16, or 25 gallons per minute. Ask for Grundfos charts to select the best gpm for least run time and power used. A 1" outlet on 5 and 7 gpm, 1 1/4" on the 10 gpm and up models. 24 month warranty.

Model	Horsepower	Feet Maximum Lift Pressure		Price	Buy Now
		0 lbs	40 lbs
P-GF 5S05-13	1/2	300 ft	208 ft	$948
P-GF WARRANTY+ LA-302AC	extend 24 month warranty to 5 years; includes required AC Lightning arrestor			$85
P-GF-RELAY: required with NON-SineWave inverter				$65

SHURFLO 9300 Diaphragm type
12/24 Volt DC; Solar direct or Battery powered 
Most energy-efficient way to get water from a 4" (or larger) deep well.
.

Uses 25 to 100 watts  Made for 24 volt; at 12 volts runs half speed with 50% water delivery but still full lifting depth. At 120 ft. of lift, current measures 3.4 amps from 24 volt battery; or 2.9 amps with 12 volt battery. Runs directly from one or two 75 watt solar modules. Add a Linear Current Booster to increase hours of solar direct operation. 

Installs by hand using 1/2 " hose or plastic pipe, rope, and 10 gauge wire. All diaphragm pumps have a higher maintenance requirement than AC centrifugal pumps. Backwoods Solar uses ours on 12 volt battery power lifting water 150 feet, out of a four inch well; and it lasted 8 years in domestic water service.

230 feet maximum lift from water surface in well to open tank. Can fill pressure tank, but is slow. Deduct 2.3 feet lift for each pound of pressure required. Maximum submergence 100 feet below water; best about 20' below lowest water level. Slow pumping doesn't draw well down. Safety valve protects pump if line freezes. To double pump speed from a 12 volt battery, use EQ 12/24 to deliver 24 volts to the pump. Warranty one year. 3.75" diameter.

MODEL	Max Lift	Delivery @ 230 feet lift		Price	Buy Now
P-Shurflo 9300	230 feet	12 volt	24 volt	$745 Shipping $14
		36 gal/hour uses 3.9 amps	82 gal/hour uses 4.1 amps

Flexible 10 gauge, 2-conductor wire(P-SF WIRE) seals to water tight plug on pump. Order enough to get above water to splice, or all the way to wellhead.
P-SF WIRE: $1.50 per foot
P-HOSE 250: 250 foot roll 1/2 inch drinking quality:  $195 (shipping: $24)
P-9300Rebuild: Replacement lower housing, diaphragm & bearing:  $72
P-9300Valves: Replacement valve kit:  $30
P-9300 Cable Plug Kit: $90
P-9300Motor: Replacement motor kit:  $169
P-SF 9300 Brush Set: Replacement motor brushes (two brushes per set) for the 9300 submersible pump:  $40

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Slowpump is not submersible, but can draw water from shallow wells, springs, cisterns, tanks, ponds, rivers and streams, and push it as high as 450 vertical feet and through miles (kilometers) of pipeline. Slow pumping minimizes the size and cost of the solar array, wire and piping. Slowpump is less expensive than submersible DC pumps, and made in a much wider range of sizes. Wearing parts typically last 5 to 10 years. Overall life expectancy is 15 to 20 years. Dimensions: 5.7 x 15.5”, weight 16 lbs. Warranty 1 year against defects in materials and workmanship.

Suction Capacity
20 vertical feet (6 m) at sea level – subtract 1 ft.. for every 1,000 ft. altitude (1 m for every 1,000 m). Pump should be placed as low as possible and gravity fed water is best.

Filtration Requirement
This pump cannot tolerate dirt. Water must be filtered clear. If water is very dirty, improve the source.

PV-Direct (non-battery) Requirements
The rated power of the PV array must exceed pump watts by 20% or more. Our table specifies actual PV watts needed. Performance specs in our table are at 15 and 30V DC. It’s okay to power by a battery bank, but performance will be 20% less than our table specifies.
A linear current booster (controller) is required to start and run in low light.

Fittings
1300 Series: 1/2” female; 2500 Series: 3/4” male
Nominal operating voltage of 12 or 24 V, please specify when ordering
 

Item	Lift (ft)	GPM	PV Watts	Max Lift (ft)	GPM	PV Watts	Price	Buy Now
P-1322	20	.51	27	440	.39	168	$644
P-1308	20	1.25	30	400	1.0	198	$644
P-1303	20	2.5	48	240	2.15	204	$644
P-2507	20	4.0	57	140	3.65	195	$669
ACCESSORIES
P-FLOWFLTRKIT			10" Inline Filter w/ Cartridge				$62
P-10FILTERS			Quantity 2, 10" Filters				$14

         Pump with EZ Kit and Filter

This rotary vane pressure pump uses one third to one half the energy of conventional AC pressure pumps and eliminates the high starting surges which push inverters to their limit. The STANDARD Flowlight Model 2920 is available in 12, 24,or 48v DC as well as 120v AC. The LOW SPEED Flowlight Model 2910 is available in 12 or 24v DC only. One year warranty.

These 16.5" pumps are more powerful, quieter, and much more durable than the lesser expensive Shurflo diaphragm pumps. Wearing parts are replaceable, and typically last 5 to 10 years. Overall life expectancy is 15 to 20 years. This pumps is the BEST choice for pressurizing a full time off-grid residence. A large pressure tank, locally available, must be used. Do not allow this pump to run dry! We would also advise that this pump be installed in an outdoor pump house with your pressure tank, as the rotary vane action of the pump may be too noisy for some in home applications.

The Standard model can generate a maximum of 4.5 gpm while the Low Speed model will deliver up to 3.4 gpm. Each model can produce 65 psi if needed with maximum power draws of 170-260 watts.

The EZFLOW Installation Kit and INLINE Filter are considered essential equipment and will make this pump simple for anyone to install and service, with no previous experience. The Installation kit includes a pressure switch, pressure gauge, check valve, drain valve, T fitting, shut-off valve and pipe nipples.

The Dry Run Switch prevents damaged should your water source run dry. Essential protection if water shortage is a possibility as this pump will be ruined if it runs dry. May be added at anytime.

P-Flowlight 2910-12v DC:  $695
P-Flowlight 2910-24v DC: $695
P-Flowlight 2920-12v DC: $695
P-Flowlight 2920-24v DC: $695
P-Flowlight 2920-48v DC: $695  !!NEW!!
P-Flowlight 2930-48v (1/2 hp) DC: $1195
P-Flowlight 2920-120v AC: $910
P-Dry Run Switch: $75
P-EZFLOW Installation Kit: $124
P-FLOWFLTRKIT Filter with Cartridge: $62
P-10" Filters: set of two: $14

A different pressure pump that really lasts.

Pumps more water with less power. Outlasts 10 small diaphragm pumps. Tolerates dirty water. Life expectancy is 20 years with 2 to 6 year owner performed maintenance schedule. Cast iron body, brass cylinder and valve seats, oil bath crankcase, and pressure relief valve. Two year warranty. 

Lifts water from shallow wells. Foot valve is required for suction lift. Maximum 22 feet suction, and pushes to 230 feet (100 psi) or to standard pressure tank. Inlet 1-1/4 inch, outlet 1 inch pipe thread. 
All are 23" x 13" x 16".

Permanent magnet DC motor models available for battery or direct solar power. 12, 24, 48, or 90 volt DC, or 120 or 240 volt AC. Use battery models for home system. Use solar direct with panels and linear current booster for pumping with no home battery system nearby.

SPECIFY MOTOR VOLTAGE and whether for battery or solar direct. (in special requests box of shopping cart)

Weight 50 lbs in several parcels, SHIPPING: $110

P-3020/P-3040  1/2 horse needs heavy duty pressure switch...$110
P-3020PV and P-3040PV solar direct models: add $242
P-3020 120 volt AC and P-3040 120 volt AC models:    add $242
P-LCB-15: For 12 or 24v models only: 15 amp linear current booster required for solar direct at less then 15 amps PV input:  $230
P-LCB-30: For 12 or 24v models only: 30 amp linear current booster required for solar direct at less then 30 amps PV input:  $410
P-LCB-48: 48v models only: 10 amp linear current booster required for solar direct at less then 10 amps PV input:  $270
P-FOOTVALVE required for suction lift:   $54.00

Pumps and primes from a shallow well, creek or tank- where the pump is less than 12 feet above water surface.
12 volt model shown on the left, 110 AC on right.
12" long +/- depending on model

SHURFLO 2088 pumps 4 gallons per minute low lift, 3 gallons per minute pumping 30 pounds pressure (a 66 foot elevation rise). Maximum pressure is 45 pounds, for about 100 feet vertical elevation lift. 12 volt pump uses 3 to 15 amps, depending on operating pressure. 24 volt is 1.5 to 7 amps. 120 Volt AC model pictured on the right is lighter duty, and can run from long wires and 400 watt inverter. Compare specs and motor to lower cost Shurflo models sold for RV use.

Shurflo is the easiest small pump to rebuild. Can run dry without harm. This 3 piston rubber diaphragm pump has a built in pressure switch, or use better pressure switch. We include 1/2 inch hose barb fittings to connect pump inlet and outlet hoses, hose clamps, plus an in-line washable screen filter for the inlet hose. We offer 1/2 inch hose or get locally a white 1/2 inch RV drinking quality hookup hose to cut for connections. One year warranty.

P-SF 12: 12 VOLT DC Shurflo 2088 premium pump, filter, fittings:  $175
P-SF 24: 24 VOLT DC Shurflo 2088 sealed motor pump, filter, fittings:   $210
P-SF AC: 120 VOLT AC Shurflo 2088 standard pump, filter, fittings:  $150

SHIPPING  $16

Easy Set Up Kit of hose, clamps, and water system diagrams; and Pressure Tank and Pressure Switch on pump accessory page

REPAIR PARTS FOR SHURFLO

P-VALVE /SF: Replacement valves(#739):  $20
P-REBUILD /SF: Diaphragm and wobble bearing complete:  $28
P-FILTER: Replacement filter fits inline with 1/2" intake hose:  $24
P-SF DC Brushes: Replacement motor brushes for the 12v and 24v DC 2088 pumps and the 9300 submersible: $36

March Pump	Ivan Labs "El-Sid"

Low power, low pressure pumps circulate liquid in closed loop heating pipes. Hot water from solar water panel, wood stove or propane water heaters can be used to heat floors, or to heat radiators, and even circulate water under water beds and compost toilets. 1/2" threaded fittings.

Use several small pumps, one for each zone rather than zone valves and a bigger pump. DC circulating  pumps use much less power than AC pumps, just 18 to 50 watts. These can be powered from batteries, or direct from a solar module. Remember, a closed loop system with no air pockets is balanced and has no head requirement for pump except pipe friction.

March pumps are centrifugal low pressure, no valves or diaphragm to wear out. Water contact parts are brass. No shaft coupling or seal to leak because magnets couple the motor to impeller right through the solid brass housing. Fluids can be as hot as 250 degrees F. PRE-2009 models M809 motor brushes last 10,000 hours.The M809HS motor brushes last 7500 hours. As of 2009, these March pump motors NO LONGER have replaceable brushes. The motor manufacturer claims the new motors should last 30,000-40,000 hours. Just to be clear, these motors DO have brushes but the brushes cannot be replaced.

Ivan Labs:  EL-SID pumps use March pump-head with direct electromagnetic drive, no shaft, bearings, brushes, or seals. 10-20 watts. Solar direct Ivan 10 recommends 20 watt solar module; Ivan 20 recommends 30 watt solar module.

Model	Volt	Amp	Gal/Min flow  at no head	Max unbalanced Head	Price	Buy Now
P-M809/12	12	1.5	4.25	7 ft.	$215
P-M809/24	24	0.8	5.0	7 ft.	$215
P-M809HS/12	12	4	6.5	15 ft.	$230
P-M809HS/24	24	2	6.25	15 ft.	$230
P-IVAN 10PV-12	12	0.9	3	3.5 ft.	$220
P-IVAN 10-BAT-12	12	0.45	3	3.5 ft.	$220
P-IVAN 10-BAT-24	24	0.25	3	3.5 ft.	$260
P-IVAN 20-PV-12	12	1.5	5	7 ft.	$280
P-IVAN 20-BAT-12	12	1.5	5	7 ft.	$280

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For portable or temporary jobs

Miniature 12 volt submersible centrifugal pump. Quick low cost way to lift water. Under 2 inch diameter pump fits down well pipe, or toss into creek or water barrel. Amazon flows 4 gallons per minute, Congo flows 8 gpm, at low lift. Maximum lift with less flow is 30 feet. Enough pressure for shower or garden spray nozzle. Not for pressure tank. Store out of water between use. Must not run dry. Amazon uses 5 amps; Congo uses 6 amps. Great performance but not very durable. Now with a One Year warranty!!

6.5" long x 1.6" diameter, 1 lb.

P-AMAZON:  $65
P-CONGO:  $85

SHURFLO PIRANHA PUMP

Smart. Reliable. Attractive. Efficient. Everything you are looking for in a bilge pump. Our tough, high density nylon housing and heavy duty water cooled motor gives the SHURflo Bilge Pump unparalleled reliability. Installations are a snap with our unique swivel base plate and extended 6' tinned wire assembly. All Piranha™ Series Bilge Pumps have a removable cartridge for easy cleaning.
Four models are available all are continuous duty submersible pumps with a 6’ tinned wire assembly. They have a removable cartridge for easy cleaning, a tough nylon housing, and an exclusive quick snap swivel base. Ignition protected.
Dimensions: 4.5” x 3”, footprint 2 3/8” round. 1 1/8" barbed nipple opening.
Backwoods recommends running the Piranha with one KC65. We have tested it here and the voltage and amps drawn are quite nice. 3 year warranty from battery, PV direct, 6 months (w/KC50). 600-1000 hour brush life.t

ITEM	Description	Volts	Amps	GPM at no Head	Price	Buy Now
P-SF-PIR1000	Piranha Bilge Pump	12	3.2	16.67	$40

FOUNTAIN PUMP

This is a RULE brand 360 gallon per hour boat bailing pump. Powered by a 12 volt battery this simple centrifugal pump moves a lot of water, over 6 gallons per minute, but lifts less than 6 feet elevation. Centrifugal pumps can run dry without harm. Stainless steel motor shaft. Strainer on base picks up water without clogging and snaps off for cleaning. Pump is totally submersible in the water source pool. 

When powered direct from a solar panel, it runs about half speed on a 20 watt  panel. This makes a good garden fountain or simple solar demonstration for schools and fairs. As an educational solar demonstration it turns a lot of water in a shallow pan, but stops when your hand casts a shadow on the solar panel.

12 volt, about 2 ampere current usage. 2 1/2" x 3 1/2". 1 year warranty.

P-RULE:  $24

 

Minimum shipping charge $12 per order covers all items with no shipping listed

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PUMP ACCESSORIES

Tank 1
	Tank 2
SMALL PRESSURE TANK  Shurflo diaphragm pressure pumps should not connect direct to faucets without a pressure tank. We recommend using a full house size pressure tank (from local sources) or, at a minimum, these tiny air bladder tanks. It will cut noise and vibration from water flow, and stop pump switch chatter, so your pump and switch last longer. P-TANK 1: 24 ounce capacity saves pump switch:  $48 shipping: $12 P-TANK 2: 2 gallon capacity lengthens pump cycle (14" tall):  $70  shipping: $12

EASY SET UP KIT: Recommended for Shurflo pumps. Six hose clamps and 15 feet of 1/2 inch hose for connecting pump to it's filter and your plumbing. Hose reduces pump noise and prevents breakage of pump-head. Ten pages of wiring, plumbing and repair instructions tell how to use pumps with pressure tanks and pressure switch.

P-EZ:  $25

HOSE: White drinking quality nylon cord reinforced hose will not flavor or poison water. 1/2" inside diameter fits Shurflo and Shurflo submersible 9300 pump. Flexibility absorbs impulses from diaphragm pumps and quiets them.

P-HOSE 250: 250 foot roll:....shipping $24.....  $195

LINEAR CURRENT BOOSTER by SOLAR CONVERTERS
Tracks maximum power point of solar modules. Used with DC pumps powered directly by solar modules (without batteries) makes pump start and run slowly in low light of morning or overcast, when it otherwise would not start.

P-LCB-7: 7 amp input includes connection for water level sensor:  $105
P-LCB-15: 15 amp input with connection for water level sensor:    $230

FLOAT SWITCH: Floating ball type switch. SPDT switch can be used to shut off pump when tank is full or when tank is empty. 

P-FLOAT  $48

PRESSURE TANK SWITCH: adjustable pressure, cleanable contacts. Mounts in plumbing near the pressure tank. More durable than built-in Flojet or Shurflo switches.

P-PS /SQD:  $30

DRAIN BACK SOLENOID VALVE for DC pumps avoids freezing where pipe from well to gravity tank cannot be buried. Valve closes with application of 12 or 24 volt to pump, opens to drain back sloping pipes when pump is shut off. Call for application information.

P-VALVE12 for 12 volt:  $120
P-VALVE24 for 24 volt:  $120

REPAIR PARTS FOR FLOJET 2100 PUMPS

P-VALVE/FJ: Valves only, fixes excess run time or back flow...$10
P-FJ21046-029: Rebuild Kit for all 2100 models, fixes leaking pumps (includes valves, diaphragm, cam bearing)...$25

Minimum shipping charge $12 per order covers all items with no shipping listed

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