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Jason (24.217.113.23)

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Posted on Monday, March 18, 2002 - 11:17 pm:   

Hello all, I am a first time converter and am at the point where I need to figure out how to install a water system. How can I use a faucet fixture that could be bought at Home Depot if an electric pump is to be runing to supply this water? Won't the pressure burst a line? Is there a pump that can hold a low pressure and then sense the pressure change when I turn the faucet on? Supplying more water? Any ideas? Thanks very much
jmaxwell (66.42.92.232)

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Posted on Tuesday, March 19, 2002 - 12:59 am:   

Buy your fixture at Home Depot. Then get yourself a Sureflo 12v RV water pump. It has a pressure switch built into the pump head that senses the drop in pressure when u open a faucet and turns the pump on. Shut off the faucet, the pump builds 40# pressure and shuts off. They make 2 popular models. 1 is rated at 2.5 gallons per minute (gpm) at 40 psi delivery pressure. The better one delivers (called Whisper King I believe) puts out 3.5 gpm at up to 60 psi. The pressure switches are adjustable to a degree. If your plumbing that u install won't handle 40 psi, then u should re-think what ure using for pipe. I would suggest PVC on the cold side and either copper or CPVC on the hot side, but there are many alternatives.
Scott Whitney (24.205.239.4)

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Posted on Tuesday, March 19, 2002 - 1:03 am:   

Hi Jason,

You will find when you investigate buying an RV water pump that they have a built-in pressure switch. The pump will autmatically turn on when the pressure drops below a set point. This happens when a faucet is turned on. When the pressure returns to this set point, the pump shuts off. This happens when the faucet is turned off and the lines are all pressurized again. I forget the cut-off/on point, but believe it is fairly standard.

You can also buy or make an accumulator tank which will soften the pulsation from the pump and provide some short term pressure without running the pump at all.

Anyway, the long and short is you don't have to worry much about this. Any RV pump will work for you. Most common is Surflo with parts or replacements found anywhere. You can get bigger marine pumps or parallel two pumps together for tricked out set-ups.

Scott
Pete (152.163.213.57)

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Posted on Tuesday, March 19, 2002 - 5:55 am:   

This may sound nuts...but i have 2 bathrooms and a kitchen sink. each faucet has a seperate pump to it. Since my but was partialy converted it was easier to run the lines that way.

The pumps can be purchased from anywhere like Graingers to the Northwestern catalog you get in the mail to a RV store ( you'll get raped ) to the JC Whitney catalog.

Also, some landscaping supply stores have them for water feeding systems off their trucks.

I found the 2.5 horse seems to work better. With the hot water heater I have...it got too hot with the bigger pump and blew off the lines. BUT, my lines are not copper they are clear hose from HD for now

Pete
FAST FRED (209.26.87.45)

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Posted on Tuesday, March 19, 2002 - 1:28 pm:   

With clear hoses , be sure to empty the water between uses and give a VERY heavy Clorox rinse , before each use.

No matter where you get the water there are lots of things that grow in stagnant water exposed to even tiny light.

Clear lines will work , till you tire of Montazumsa Revene.

If it hasnt happened , be asured it will. You do get a warning , the water will begin to smell.


FAST FRED
Frank R (216.222.12.52)

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Posted on Tuesday, March 19, 2002 - 1:39 pm:   

Most RV water systems can create about 35 psi water pressure with a pressure switch. Without a pressure switch, the pumps will keep running and make about 45psi. The national standard in the plumbing world is 55 psi in most cities. Most appliance manufacturers use this same pressure. The plumbing fixture manufacturers equiptment can control about 125 psi for sinks and lavatories. A copper water supply line properly soldered will easliy control about 450 psi. Our rig has a 1/2 hp 120 vac booster pump when higher volumn and pressure are desired. The booster pump is great for any fire emergency or washing the bus.. Frank
Pete (205.188.193.187)

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Posted on Tuesday, March 19, 2002 - 8:35 pm:   

We bring spring water to drink..I'd never drink out of an RV system
Scott Whitney (24.205.239.4)

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Posted on Tuesday, March 19, 2002 - 10:32 pm:   

I am going to install a special cupboard over the sink to hold two-gallon water containers. Overflow spills will go straight into the sink. I'll brush my teeth in the RV water, but that is as far as I go. The two gallon jugs at Smart & Final are pretty cheap. But it is not just an RV thing, I don't drink the city water from the house faucet either. . .

Scott
Phil (204.89.170.3)

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Posted on Wednesday, March 20, 2002 - 8:19 am:   

We carry gallons of distilled water in teh bays. Not much taste but great for cooking and no bacteria. 65 cents a gallon at Walmart.

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