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Topic: fresh water accumulator tank (Read 1182 times) previous topic - next topic

fresh water accumulator tank

My accumulator tank has bitten the dust. After finally getting the pump/accumulator assembly free, I started looking for a replacement. The original flojet model 20799-000 was mounted horizontally next to the flojet model 4406-143 pump. I found a replacement tank, but the cost is a bit much. In looking through the archives I have seen where others have used hot water tank accumulators, but these seem to just be air tank "surge buffers" that do not have a diaphram to separate the air pressure from the the water.
I am considering getting two of the Sureflow accumulators and hooking them up in line. The Sureflows are considerably less volume than the stock flojet, so my thinking was that two would make up for the difference. Because the housing on the Shureflo is  plastic, I would not have to worry about the tank rusting out.

I would greatly appreciate your input.
Thanks,
Len
Len and Deb Speiser
1999 U270 36'
2017 Jeep Wrangler Unlimited
You're either on the bus, or you're off the bus!--Ken Kesey
If you're lucky enough to live in a bus, you're lucky enough!

Re: fresh water accumulator tank

Reply #1 –
I used one from Home Depot
Did you read this thread already?

The Blue Tank

Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: fresh water accumulator tank

Reply #2 –
I had scanned this thread and it lead me to Home Depot. When I went on Home depots website they did not state that it had a diaphragm. I will check into this again. Thanks for pointing it out. i just did not want to get an air tank that would "empty out" if the water in the system were to run out. I was thinking that might not be a problem in a sticks and bricks application to reduce water hammer effect in a water heater.
I know'd I would get some great feedback from this forum.
Thanks again,
Len
Len and Deb Speiser
1999 U270 36'
2017 Jeep Wrangler Unlimited
You're either on the bus, or you're off the bus!--Ken Kesey
If you're lucky enough to live in a bus, you're lucky enough!

Re: fresh water accumulator tank

Reply #3 –
With our Shurflow 4008 water pump a single small Shurflo plastic accumulator does the job for us.  You may want to start with one small Shurflo accumulator to see how it works in your coach.

Re: fresh water accumulator tank

Reply #4 –
The larger the accumulator the longer you can draw water BEFORE the pump turns on and makes noises in the night. I'd go with the biggest accumulator you can fit into the pump area. 
Regards,
JON TWORK KB8RSA
Full Time RVer (10+ Years) & Dedicated Boondocker
Retired, Unemployed, Homeless Transients
1996 Foretravel U270-36 w/24' Timberwolf Trailer
I firmly believe that tomorrow holds the possibility for new technologies, astounding discoveries, and a reprieve from my remaining obligations.
Welcome to WeRV2 (Under Construction)
Find Jon: Via Satellite Tracker Datastorm Users
The Second Amendment is in place in case they ignore the others.

Re: fresh water accumulator tank

Reply #5 –
The larger the accumulator the longer you can draw water BEFORE the pump turns on and makes noises in the night. I'd go with the biggest accumulator you can fit into the pump area. 
Regards,
JON TWORK KB8RSA
Full Time RVer (10+ Years) & Dedicated Boondocker
Retired, Unemployed, Homeless Transients
1996 Foretravel U270-36 w/24' Timberwolf Trailer
I firmly believe that tomorrow holds the possibility for new technologies, astounding discoveries, and a reprieve from my remaining obligations.
Welcome to WeRV2 (Under Construction)
Find Jon: Via Satellite Tracker Datastorm Users
The Second Amendment is in place in case they ignore the others.

Re: fresh water accumulator tank

Reply #6 –
Quote from: Jon Twork –
The larger the accumulator the longer you can draw water BEFORE the pump turns on and makes noises in the night. I'd go with the biggest accumulator you can fit into the pump area. 
Regards,
We had a seven gallon accumulator tank in our fifth wheel, wish I had the space in our Foretravel. In the process of emptying our bays hmmmmmm who knows.

Roland
1993 U280 4341
2010 Jeep Liberty
The Pied Pipers

Re: fresh water accumulator tank

Reply #7 –
I got the 2 gal. accumulator from HD. It is going to be a tight squeeze getting it in and out, but I do think it will make for a more consistent water flow. The 2 gal. unit does not have the mounting lugs that the original does, so I will have to fabricate a strapping system and new pump mount. I will post pictures as I get further into the project.
Thanks for everyone's input.
Someone I really admire used to say "nobody in the room is smarter than everybody in the room."
This forum proves it.
Len
Len and Deb Speiser
1999 U270 36'
2017 Jeep Wrangler Unlimited
You're either on the bus, or you're off the bus!--Ken Kesey
If you're lucky enough to live in a bus, you're lucky enough!

Re: fresh water accumulator tank

Reply #8 –
Quote from: lenspeiser –
Someone I really admire used to say "nobody in the room is smarter than everybody in the room."
Great line, I'll remember it!  ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: fresh water accumulator tank

Reply #9 –

Amazon has the Sureflo 2 gal $42 (& free Prime shipping) - integral tee and mounting feet.
Amazon.com: SHURflo 182-200 Pre-Pressurized Accumulator Tank: Automotive

Correction: as Brett pointed out this is a 21 oz capacity. It is not recommended for use with a 4900 or 5900 Series Smart Sensor Pump per Shureflo. It measures approx 11" x 5".

The 2 gal (13.7" x 8.4") is $44 and the 4 gal (16" x 11.5") is $61 - Water Worker HT-2B Vertical Pre-Charged Well Tank,100 Psi, 2 Gallon - Water...

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
David & DC
97 U320 40' WTBI M11 450 #5153
01 Wrangler Sport
Near Palacios, TX

Re: fresh water accumulator tank

Reply #10 –
Note: The Shruflo installation document shows this as a 21 ounce capacity accumulator.

Bigger is better if it will fit.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: fresh water accumulator tank

Reply #11 –
Quote from: wolfe10 –
Note: The Shruflo installation document shows this as a 21 ounce capacity accumulator.

Bigger is better if it will fit.

Not sure what you replaced ours with, but it is quiet as all get out!  ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: fresh water accumulator tank

Reply #12 –
Quote from: Barry & Cindy –
With our Shurflow 4008 water pump a single small Shurflo plastic accumulator does the job for us.  You may want to start with one small Shurflo accumulator to see how it works in your coach.
Barry...What size accumulator did you use 21oz ??

Hans
Hans & Marjet
1995 U300 "Ben" (#4719)
3176B Cat,4060HD,Jake
SKP#139131
Motorcade#17579
2006 Honda Element (towed)

Re: fresh water accumulator tank

Reply #13 –
We installed the SHURflo 182-200 Pre-Pressurized Accumulator Tank, purchased on Amazon. 

We just put the tank inline on the hose, without fastening down the tank or pump.  We did mount our pump to a block of foam, but the foam is not held down. 

Our coach's water pump area is a small deep space and having the ability to pull out the pump without removing any hoses helps facilitate maintenance and adjustments.