Replaced both fresh water pumps - Printable Version
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Replaced both fresh water pumps - Chester Stone - 10-30-2012
My Grundfos 115v pump failed due to water leaking caused by an old "O" ring. The 12v pump failed due to auto shutoff not working and seals old and leaking. I replaced both with Shurflo 2088 series, one 12v and one 115v. I also installed a Shurflo 2 gallon accumulator tank which makes everything work smooth and great.
RE: Replaced both fresh water pumps - encantotom - 10-30-2012
hi chester. would love to see pictures of the install. for sure those pumps are a ton cheaper than the mach5.
tom
RE: Replaced both fresh water pumps - Gordon - 10-30-2012
Tom,
What are the advantages of the 110v ac pump? Per your advise I installed the same pump you have in your '90 & it has more pressure than some parks I've been in. I can't remember the last time I had AC but no water hook up!
RE: Replaced both fresh water pumps - encantotom - 10-30-2012
gordon, that is a very good question. and now that you have asked it i have to think hard about it.
what gordon is talking about is i put a 5.7gpm surflow extreme 12vdc pump in my 90 coach. it is high pressure and high volume for a 12v pump. it even allowed me to take out the accumulator tank and have no issues as it turns on with demand and is easily able to keep up.
it was around $175 bucks if i recall.
surflow 115v pump that chester put in is i believe a 3gpm pump and is similar to the 12vdc pump he also put in only a different power source. is that right chester?
the headhunter mach5 pump that newell used for some time is a 20gpm pump and 65psi or so. so it can supply a ton of water flow.
but to be honest, not sure other than the potential for lots of water flow, why a 115v pump is used.
the headhunter for sure has alot of features and 3 stages of impellers for high water flow yadi yadi yadi.
good thing i got my mach 5 for 375 bucks or i would be scratching my head why i didnt do what chester did.
any thought from the rest of you?
tom
RE: Replaced both fresh water pumps - HoosierDaddy - 10-30-2012
My '78 had 1 12V shurflo with a small accumulator tank and worked fine. My '93 has two 12V shurflo pumps and works fine as well. An accumulator tank would offer more constant pressure and reduce the cycling of the pump. Maybe a newer coach with 2 toilets that is on hook-ups would benefit from the increased flow and longevity of a 115V pump.
My '78 had 1 12V shurflo with a small accumulator tank and worked fine. My '93 has two 12V shurflo pumps and works fine as well. An accumulator tank would offer more constant pressure and reduce the cycling of the pump. Maybe a newer coach with 2 toilets that is on hook-ups would benefit from the increased flow and longevity of a 115V pump.
RE: Replaced both fresh water pumps - Chester Stone - 10-31-2012
Yes, the 12v and 115v are the same pump - 45psi, 3+gpm. I can run them both or switch out. I like the accumulator tank because it smooths out the flow, reduces cycling and hammering. Attached is a photo of the installation. I would have liked to use better clamps, but these were all that were available here in Mexico.
RE: Replaced both fresh water pumps - encantotom - 10-31-2012
nicely done chester,
tom