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Installing a new SureFlo water pump... - Printable Version +- Wanderlodge Gurus - The Member Funded Wanderlodge Forum (http://www.wanderlodgegurus.com) +-- Forum: Yahoo Groups Archive (/forumdisplay.php?fid=61) +--- Forum: WanderlodgeForum (/forumdisplay.php?fid=63) +--- Thread: Installing a new SureFlo water pump... (/showthread.php?tid=6937) |
Installing a new SureFlo water pump... - bumpersbird - 07-03-2008 04:52 Online conversion calculator http://www.sengpielaudio.com/ConvPress.htm Kurt Horvath 95 PT-42 10AC --- In WanderlodgeForum@yahoogroups.com, Pete Masterson wrote: > > No. It is apparently assumed that you'll know what to do. (These are > mostly installed by professional plumbers.) The only instructions I > found in a brief online search stated: The accumulator tank is > precharged at 0.8 bar. If your pump's cut-in pressure is different > you may have to customize the tank to best fit your installation. It > goes on to explain how to check and adjust the pressure in the tank. > See: > <http://www.johnson-pump.com/JPMarine/products/IB_Pdfs/ > IB-201_Acctank.pdf> > > I note that this appears to be from a Swedish company and English is > not the primary language. I leave it to you to figure out what 0.8 > bar is in psi. English instructions are on page 4 of this pdf. > > Pete Masterson > '95 Blue Bird Wanderlodge WBDA 42 > El Sobrante CA > aeonix1@... > > > > On Jul 2, 2008, at 5:36 PM, Al wrote: > > > Is it marked on the accumulator how much air pressure one is supposed > > to put into the unit? > > > > Al Johnson > > '96 BMC B100 > > Mandeville, Louisiana > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > wrote: > >> > >> It's actually an "accumulator tank" that accumulates pressure for > > the > >> water system. It's often located near the main water pump. It will > >> look like a canister of about 6 to 8" in diameter and perhaps 12 > > to > >> 14" tall. Mine was painted blue. There will be a schrader valve on > >> one end. This allows you to pressurize the diaphragm, if it loses > >> it's 'charge.' Normally you'd fill it with air to about the > > expected > >> water pressure in the system, that puts the rubber diaphragm at > > the > >> minimum stretch. As pressure drops, the diaphragm pushes on the > > water > >> side of the accumulator tank (giving you water pressure). As water > >> pressure is recovered by the pump, it will push the diaphragm back > >> against the trapped air. > >> > >> Almost all water pump systems (home or RV) have them (sized for > > the > >> water demand). The usual maintenance issue is that the air > > pressure > >> has been lost (just put a compressor on it and pump it back up) or > >> the diaphragm has failed (in which case the accumulator tank must > > be > >> replaced). > >> > >> Pete Masterson > >> '95 Blue Bird Wanderlodge WBDA 42 > >> El Sobrante CA > >> aeonix1@ > >> > >> > >> > >> On Jul 2, 2008, at 4:37 PM, Scott Forman wrote: > >> > >>> Where is the pressure tank? > >>> > >>> Scott Forman > >>> 86 PT38 > >>> Memphis > >>> > >>> --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright" > >>> > >>>> > >>>> Thank you for the responses. I ordered the 5.7 from > > pplmotorhomes, > >>>> and > >>>> the screen/filter for it. Look forward to installing this. I'm > > going > >>>> to go through and tighten any hose clamps I can find before > >>>> installation, just to be safe. > >>>> > >>>> I do think I'll keep the pressure tank. I usually keep the pump > > off, > >>>> only turning it on when necessary. The pressure tank allows me > > to > >>>> wash > >>>> my hands and flush the toilet a couple of times without turning > > the > >>>> pump on, which is nice, especially in the middle of the night. > >>>> > >>>> Appreciate the replies! > >>>> > >>>> -Ryan > >>>> '86 PT-40 8V92 > >>>> > >>> > >>> > >>> > >>> ------------------------------------ > >>> > >>> Yahoo! Groups Links > >>> > >>> > >>> > >> > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > > Installing a new SureFlo water pump... - Ryan Wright - 07-03-2008 04:56 Leroy, > Does this look like your pump? Yep, that's it. Holy cats, $469?! I think I'll buy a rebuild kit for the pump portion of mine and keep it as a spare. Actually, I have THREE of these pumps laying around now. One came out of my Travco and two came with my Bird. All three need to be rebuilt. I had no idea they were that expensive. I assumed they were old cheapies, inferior to the newer style beltless pumps. Are these reliable? I've not been happy with any of mine, but I'll grant them the fact that all were heavily used when I received them. They're quite loud. I'm hoping the Sureflo will be much quieter. > It can run for days without water and not get hot. I've no idea which pump was the culprit in the event I relayed - it either wasn't mentioned, or my memory is bad. -Ryan Installing a new SureFlo water pump... - Ryan Wright - 07-03-2008 04:58 Google also has a built in calculator. Just search for "0.8 bar in psi" and it will calculate it for you. You can put in complex mathematical formulas, all sorts of neat things and get answers. -Ryan '86 PT-40 8V92 On 7/3/08, bumpersbird > > Online conversion calculator > > http://www.sengpielaudio.com/ConvPress.htm Installing a new SureFlo water pump... - bumpersbird - 07-03-2008 05:02 Ryan, Tried the Google calculatoe work great thanks for the heads up. Kurt Horvath 95 Pt-42 10AC --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright" > > Google also has a built in calculator. Just search for "0.8 bar in > psi" and it will calculate it for you. You can put in complex > mathematical formulas, all sorts of neat things and get answers. > > -Ryan > '86 PT-40 8V92 > > On 7/3/08, bumpersbird > > > > Online conversion calculator > > > > http://www.sengpielaudio.com/ConvPress.htm > Installing a new SureFlo water pump... - Pete Masterson - 07-03-2008 05:37 In my installation, I connected 3/4" PEX tubing to the existing plastic pipe. To manage the elbows that were removed, the tubing makes large loops from the existing pipes to and from the pumps. (About 20-24" of PEX was used on either side of the pump). This gradual loop does not seem to affect the pump output. I measure 65 psi at the outside faucet near the hook ups when the pump is operating. 3/4" PEX is more trouble to work with than 1/2" (it doesn't bend as easily or in as tight a loop) -- but I recommend using it with the in and out sides of the pump. Pete Masterson '95 Blue Bird Wanderlodge WBDA 42 El Sobrante CA "aeonix1@mac.com" On Jul 3, 2008, at 11:23 AM, David Brady wrote: I checked and Shurflo specifies that the Shurflo Smart Installing a new SureFlo water pump... - mbulriss - 07-03-2008 05:41 I had PAR water pump in my 83PT40 that looks similar, and is about half the price. It never gave me a lick of problems in 9 years of ownership. That's probably because I had a new spare in the basement compartments. My theory is that if you have spares on board, that's the surest way to make sure the original part never breaks. Go figure..... Mike Bulriss 1991 WB40 "Texas Minivan" San Antonio, TX --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright" > > Leroy, > > > Does this look like your pump? > > Yep, that's it. Holy cats, $469?! I think I'll buy a rebuild kit for > the pump portion of mine and keep it as a spare. Actually, I have > THREE of these pumps laying around now. One came out of my Travco and > two came with my Bird. All three need to be rebuilt. I had no idea > they were that expensive. I assumed they were old cheapies, inferior > to the newer style beltless pumps. > > Are these reliable? I've not been happy with any of mine, but I'll > grant them the fact that all were heavily used when I received them. > They're quite loud. I'm hoping the Sureflo will be much quieter. > > > It can run for days without water and not get hot. > > I've no idea which pump was the culprit in the event I relayed - it > either wasn't mentioned, or my memory is bad. > > -Ryan > Installing a new SureFlo water pump... - David Brady - 07-03-2008 06:23 I checked and Shurflo specifies that the Shurflo Smart Sensor Extreme 5.7 gpm water pump should have at least 18 inches of elbow free tubing both at the inlet and at the outlet. To quiet the pump even further I mounted it using a Jabsco vibration pad kit, part number 43990-0058. These legs provide much more vibration dampening than the original Shurflo legs. With the Jabsco legs, the pump is pretty quiet. David Brady '02 LXi, NC David Brady wrote:
Installing a new SureFlo water pump... - redffultra - 07-03-2008 09:03 I just replaced the PAR belt driven pump in my "83 FC with a 2.8 ShurFlo that I got new off Ebay for $55 and free shipping. I hooked it up with the existing accumulator and seem to be getting better flow and pressure than the PAR. It operates at 45psi so I don't have to worry about the pressure or water usage to be excessive. Dan BuckeyeBird --- In WanderlodgeForum@yahoogroups.com, erniecarpet@... wrote: > > One thing about the increased gpm, is the extra flow into your gray tank. > Might fill up too fast. > > Ernie Ekberg > 83PT40 > Livingston, Montana > > > > > **************Gas prices getting you down? Search AOL Autos for > fuel-efficient used cars. (http://autos.aol.com/used? ncid=aolaut00050000000007) > |