So I want to start running my WFP off of a buffer tank and plan on running a 12V pump from the buffer tank to the WFP tank. What GPM and what PSI would you guys consider sufficient to run a wfp? I was looking at 1GPM @ 40psi but that may be too low?
I use a 1.8 gpm 100 psi shurflo with an analog control from a 12v battery. The control is $12 on amazon and is easily wired. I used an 20 dollar tool box from a big box store for a housing. It has a bypass valve so you don’t need a buffer tank as long as the pump pushes out enough. I use 4 tucker pencil jets and it works just fine at about 75% power. It also self primes which is great.
So you think 2GPM would be enough to supply the WFP?
Excessive but works, add flow controller for best performance
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This is probably the best setup for a tank based system. The advantage to a pump control is longer battery life and you use less water.
https://shopwindowcleaningresource.com/rhg-delivery-kit.html
There is a huge ROI for WFP, so I’d recommend purchasing the best equipment from the get-go and that would include a digital flow-controller. I purchased mine from WCR 5 years ago and I’ve had no problems other than my faulty wiring connection that I’ve had to fix.
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What kind of set up are you trying to run? Number of jets on your brush, one or more poles? 2 gpm would work, but as Jeff said it would be overkill likely. No matter what you get, make sure to get some kind of flow controller!
each pole need about 40 psi at the the brush
How much hose are you running?
I’ve modified since then. I bored out the jets a bit to achieve more flow, use a hot water heater for better results, run 250 ft of 3/8 flexzilla air hose for less pressure loss and better flow, and 1/4 air for 50 ft, then about 8 inches of xero hose right before the brush. I get about a gallon a minute out of it without having so much pressure that the water splatters everywhere when rinsing.
Nice! Thanks for sharing. Do you have a picture of your setup and what kind of flow controller do you have? I can’t find the one you referred to on Amazon.
search for “12v motor speed controller” if you want the analog style, there are many, they are cheap. i have used different ones over the last few years.
ideally the speed controller should go in your red line between the pump and the on/off switch if using one otherwise between the battery and the pump
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@jbilsland1 what @DelirousDungo said. Its pretty nasty hear weather wise, but next time I can I’ll pull it out to show it. I’ve got other stuff going tomorrow, but if its urgent, such as if your in the middle of a build, I’ll make time to pull it out. Otherwise I’ll do it next time I use it. That said, I forgot to mention that I almost always have good pressure, so I’ve only used the pump a few times over the last year and a half.
@Chargingsnail thanks man. I have a better idea what I’d like to do
@Chargingsnail I live in Florida so I forget other parts of the country have to winterize for winter. No rush on the pictures. I say I want to get it built out ASAP but in reality it’ll be a few weeks. I have to move some shelving around. What did you mount everything to?
This is the pump and flow controller I’m looking at. I’m looking at running 250’-300’ feet of 3/8” air hose.
@jbilsland1 that pump is much too large. I use a 60 psi 1.8 gpm shurflo, and usually dont use it at full power. Most hot water heaters don’t go over 80 psi I think. My set up is cheap. I run my hose on a garden reel. I’ll try to remember to take a picture of my hose tomorrow.
That does look overkill’s for most single WFP applications. For what it’s worth, the pump looks identical to a RHG booster pump without a pressure switch. Used for boosting the RO supply pressure when you don’t have a stop/go flow on your system.
@Chargingsnail @pristineviewcleaners I’m a one operation currently but I’m hoping soon to get a helper. So I would like to have the correct size pump for when I do upgrade to two poles. For two poles what size pump would you recommend?
I also want to mention that I don’t plan on having a tank in my van. So this would be used as a booster pump. I think I would need a pump with more water flow to push through the RO membrane, right?
Thanks for your help
Are you going to run a wfp system out of your Trailer ?
I run one out of my PW rig. I use the same water tank for my PW. Works great !!!
We have been doing this for years… check some of my old posts… 100 psi 1.8 GPM image|375x500 5/16 hose. Can run two poles multiple stories all day or just one pole. This is tried and true.
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