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Old 01-23-2005, 07:33 AM   #1
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Location: We are in Seabeck Washington staying with our son and daughter-in-law.
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We are full timing, and wanted RO (Reverse Osmosis) water. I purchased a system from the RV Water Filter Store and I am pleased with the system. A big problem was the long fill time and the need to have the water pump turned off during the whole process.

I designed and installed a separate fill system that bypasses the city water. It intercepts the fill tubing to the tank beyond the city water diversion valve.

I purchased a Marshal 325 garden hose to 1/2 inch FPT adapter, a 1/2 inch MPT to Flair-it 1/2 inch I.D. tubing adapter, some Flair-it tee and elbows and some Flair-it tubing.

The garden hose adapter exactly matches the City Water adapter on my 2001 Alpine Coach. I cut a hole in the facia immediately below the City Water fill and mounted my new water fill in that hole. I cut the tubing between the city water valve and the tank and insterted my new tee and used a couple of elbows to route the new fill to the tee.

Now I am able to use the pressure pump for water all the while I am filling the tank at 3gph from the RO water system.

One important precaution. map out all of the tubing runs behind the facia all the way to the tank before you make any cuts. Be sure you understand which line to cut. Different models and years may be plumbed different.

I was able to get tubing supplies on line at rvpartsoutlet.com

Gary
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Old 01-23-2005, 07:33 AM   #2
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Join Date: Jan 2005
Location: We are in Seabeck Washington staying with our son and daughter-in-law.
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We are full timing, and wanted RO (Reverse Osmosis) water. I purchased a system from the RV Water Filter Store and I am pleased with the system. A big problem was the long fill time and the need to have the water pump turned off during the whole process.

I designed and installed a separate fill system that bypasses the city water. It intercepts the fill tubing to the tank beyond the city water diversion valve.

I purchased a Marshal 325 garden hose to 1/2 inch FPT adapter, a 1/2 inch MPT to Flair-it 1/2 inch I.D. tubing adapter, some Flair-it tee and elbows and some Flair-it tubing.

The garden hose adapter exactly matches the City Water adapter on my 2001 Alpine Coach. I cut a hole in the facia immediately below the City Water fill and mounted my new water fill in that hole. I cut the tubing between the city water valve and the tank and insterted my new tee and used a couple of elbows to route the new fill to the tee.

Now I am able to use the pressure pump for water all the while I am filling the tank at 3gph from the RO water system.

One important precaution. map out all of the tubing runs behind the facia all the way to the tank before you make any cuts. Be sure you understand which line to cut. Different models and years may be plumbed different.

I was able to get tubing supplies on line at rvpartsoutlet.com

Gary
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Old 01-23-2005, 07:31 PM   #3
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Thanks for the info. I will try to catch up with you tomorrow to take a peek.
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Old 01-24-2005, 12:20 PM   #4
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What kind of RO gizmo? At 3gph fill rate, how much waste water is produced? Have you timed the water production to see it actually puts out as claimed?

I bought a "150gpd" unit that make "1.5-2 gallons per gallon of RO water" at Quartzite, then ran a test. Its doing about 20gpd (not dazzling) w/about 200 gallons of waste water. So I'm looking for a real unit.
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Old 01-26-2005, 09:56 AM   #5
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I have tested the unit. With the booster pump running I get about 2.6 gal per hour in the tank. I make about 9 gal per hour of "drip irrigation water."

Gary
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Old 03-04-2005, 07:39 PM   #6
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RO membranes are normally rated at 100psi feed pressure and at 77 degrees F. Lower pressure or temperature will reduce production considerably. My unit has a 300 gpd rating and is making water at 5+ gallons per hour at only 40 psi input; waste water is set at twice the product. Check out www.vagabondwater.com for more detailsand photos of installation in my 2003 Alpine.

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