| house water pumps - (was drip channel) [message #111240] |
Fri, 07 January 2011 15:28  |
jayrabe
Messages: 509
Registered: June 2009
Location: Portland, OR
Karma:
|
Senior Member |
|
|
A new pump is on my list. Plus the plumbing from tank to pump is all corroded and needs to be replaced anyway, and yes, an easy drain valve and an antifreeze suck port is in the design too.
At the moment planning on the ShurFlo 4008 (3.0 gpm 55psi). Looked at the Whisper King, but it only puts out 2.0 gpm at 30psi, which isn't even as good as the OEM ShurFlo 200's 2.8 gpm. The 4008 supposedly is designed to be quiet, but anything is bound to be better than the 200 I've got which is Very noisy.
One addition I'm looking at is an expansion tank per previous discussion. Don't seem to have one in the coach at the moment, unless it's hiding behind the bathroom, and it seems like it would give a great improvement in constancy of flow and less pump cycling. The one I looked at at HD was a Watts DET-5 for $39. A bit confused because the Watts website says the model is obsolete, but HD had two new ones in their orig boxes. I know exp tanks aren't needed in the more expensive constant flow pumps or ones with internal bypasses, but the 4008 is pretty basic without all those bells & whistles.
Also wondering how much an exp tank might really help. Info says it's for handling pressure fluctuation from hot water heating/expanding. Do they really give much benefit ($40 worth) in our systems?
Thanks,
J "experiencing the dreaded 'scope creep' at every turn"
76 PB
Portland, OR
--------------------------------------
> While you are upgrading the plumbing, consider upgrading the pump itself for a quieter model. Also, I have eliminated the fill port on the tank by mounting a valve from the side that is pressurized when you hook up to city water that goes to the tank fill spot. My drain valve is accessible from under the coach. I also added a line on the suction side of the pump to fill the system will RV Pink antifreeze.
> As for the caps, they can be repaired well with ABS cement and fine fiberglass cloth. If you want it to look nice you have to take the cap out, but it looks like you are close to that anyway.
> --
> Hardie Johnson "Crashj"
> 1973 26 foot Glacier, White Thing
> Raleigh NC
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
