Hi y'all, so I'm looking at doing the water system next on my conversion... Are there pumps with auto switches for when the faucet is on or off?? I've seen booster pumps but I'm not sure if that would work without pressure before that. I'd rather go that way than have to wire one to a switch. Can anybody steer me in the rite direction?
The vast majority of RV pumps come with a pressure switch - when powered, they'll run until the line is pressurized, then automatically turn off. You can use an accumulator tank to minimize how often it cycles, or a variable speed pump to reduce noise.
I'm in the process of rebuilding my water system and am using a pair of these pumps
https://www.amazon.com/gp/product/B08463HTHM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
along with a 2 gallon accumulator. My logic is that I don't ever want to set up camp somewhere only to find that my sole water pump has failed, so now I'll have a hot spare.
A regular RV pump is the way to go for most people, in combination with a small accumulator tank as has already been mentioned. The tank does two things - it keeps the pump from running constantly when in use, and it removes the pulsations from the water flow which would be felt out of the faucet otherwise.
I found that the little tanks made by the RV pump makers are just too small and currently have a 1L accumulator. Eventually I'll put in a 1 or 2 gallon tank.
Regarding on/off switch, the pumps will come with a built-in switch which will turn off the pump once pressure is reached. However, I don't like leaving the water pump powered up at all times, because when there is a leak (and one day there will be) the pump will just keep running until it empties your freshwater tank. BTDT.
So, I installed a latching water pump relay which allowed switches to be installed in multiple places, so the water can be turned on/off from any point of use.
Here's what I used:
https://www.amazon.com/gp/product/B00C1M6B1C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B000O8D5XM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/Intellitec-0000776200-Potted-Water-Control/dp/B072N8PMTY/ref=sr_1_4?crid=32ZQWDYZU4L1A&dchild=1&keywords=intellitec+water+pump+control&qid=1599738020&sprefix=intellitec%2Caps%2C173&sr=8-4
I believe there are 2 gallon tanks for accumulators for TVs. They used to have them at camping world. Sureflo pump is very common in TVs. Turn on and off automatically when operating faucet.
Any on demand water pump will turn off when it reaches the preset pressure ,flow rate is what I look for and quality there is some junk sold for RV water pumps some will only last 1 season.The 110v pumps seem to last longer,prices will vary a bunch on RV water pumps from $50.00 to $1500.00 I would stay away from the Chinese pumps.I have a Headhunter water pump the tank is part of the pump but they are way over priced IMO
I've been looking at water pumps recently as I have burned through one and another didn't seem to have great pressure. I've been hoping to couple a new pump with a pressure tank. After doing some research, I found this SEAFLO and pressure tank combination: SEAFLO combo at Amazon (https://www.amazon.com/SEAFLO-Water-Pump-Accumulator-System/dp/B07QN8D18H/ref=asc_df_B07QN8D18H/?tag=hyprod-20&linkCode=df0&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252&psc=1&tag=&ref=&adgrpid=69734396795&hvpone=&hvptwo=&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252) I haven't bought it, but it is on my wish list.
Quote from: mmanning on September 10, 2020, 08:25:26 AM
I've been looking at water pumps recently as I have burned through one and another didn't seem to have great pressure. I've been hoping to couple a new pump with a pressure tank. After doing some research, I found this SEAFLO and pressure tank combination: SEAFLO combo at Amazon (https://www.amazon.com/SEAFLO-Water-Pump-Accumulator-System/dp/B07QN8D18H/ref=asc_df_B07QN8D18H/?tag=hyprod-20&linkCode=df0&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252&psc=1&tag=&ref=&adgrpid=69734396795&hvpone=&hvptwo=&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252) I haven't bought it, but it is on my wish list.
Might have to run new wiring to that one - max current draw is nearly 19 amps.
Timely subject as my started leaking around the small, outboard filter. The one in there seems to be original and working for a couple decades - an old faithful Shurflo 2088.
Does not have an accumulator so it makes noise instantly when water flows. Other than that the pressure is good and flow is fine, especially for a boondocker configuration. The biggest complaint is the noise.
I'm going to swap in another old faithful, insulate the pump to lower the noise but not sure how much noise can still pass through the output hose.
notes while pondering topic.
Water pump
Shurflo Revolution 12V pump with the Shurflo RV accumulator tank
FloJet and Shurflo - Flojets are noisy pumps if mounted inside. Shurflo is a quieter pump
on/off type, not variable speed
Shurflo 2088 is the old proven mechanical diaphragm pump
Flojet Quad II Demand Pump 3.7 GPM 12 VDC 45 PSI # 4300-142A
To reduce noise, be sure you have flexible lines on both sides of the pump. As they age, the lines get hard and transmit more vibration/noise. I used silicon tubing for mine to help reduce transmission.
Quote from: luvrbus on September 10, 2020, 06:52:55 AM
Any on demand water pump will turn off when it reaches the preset pressure ,flow rate is what I look for and quality there is some junk sold for RV water pumps some will only last 1 season.The 110v pumps seem to last longer,prices will vary a bunch on RV water pumps from $50.00 to $1500.00 I would stay away from the Chinese pumps.I have a Headhunter water pump the tank is part of the pump but they are way over priced IMO
Clifford, remind me once again before I come down and I'll bring you a spare 8)
Quote from: mmanning on September 10, 2020, 08:25:26 AM
I've been looking at water pumps recently as I have burned through one and another didn't seem to have great pressure. I've been hoping to couple a new pump with a pressure tank. After doing some research, I found this SEAFLO and pressure tank combination: SEAFLO combo at Amazon (https://www.amazon.com/SEAFLO-Water-Pump-Accumulator-System/dp/B07QN8D18H/ref=asc_df_B07QN8D18H/?tag=hyprod-20&linkCode=df0&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252&psc=1&tag=&ref=&adgrpid=69734396795&hvpone=&hvptwo=&hvadid=343189697703&hvpos=&hvnetw=g&hvrand=12644210723318606106&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019808&hvtargid=pla-734924565252) I haven't bought it, but it is on my wish list.
Mike the Seaflo 55 is a good pump they move a lot of water with pressure they are not cheap being stainless steel .the 42 series is just your typical rv pump but is better than most even at 3.3 GPM and both are quite not like the 2088 Shurflo
Well, y'all know me. Save a dime when I can. Decided to make use of the 3M 5200, cleaned up the leaking filter and gave it a good bead to lock it up forever. As well got that shiiite all over me again. That stuff is amazing, like it just jumps out the tube and onto every cloth, skin, and yes, even my face. WTF - after cleaning it all off, walk in and daughter barks "what the hell is that all over your face?:" Foke sakes - it even jumped onto my face. back to garage and another wiping session with acetone. Thank god for that stuff.
Richard - went looking for silicone tubing. Not the easiest stuff to find. The spec sheet says 5psi so may just go with the standard stuff.
Quote from: windtrader on September 10, 2020, 06:57:16 PM
Well, y'all know me. Save a dime when I can. Decided to make use of the 3M 5200, cleaned up the leaking filter and gave it a good bead to lock it up forever. As well got that shiiite all over me again. That stuff is amazing, like it just jumps out the tube and onto every cloth, skin, and yes, even my face. WTF - after cleaning it all off, walk in and daughter barks "what the hell is that all over your face?:" Foke sakes - it even jumped onto my face. back to garage and another wiping session with acetone. Thank god for that stuff.
Richard - went looking for silicone tubing. Not the easiest stuff to find. The spec sheet says 5psi so may just go with the standard stuff.
Isn't it amazing what a bus will do for a little attention lol. I'm sure your bus was giggling with glee once the repair was complete. Plus I am certain watching you walk away covered in 5200 made it smile and say " He luvs me" ;D ;D
Good going!
V. Man.
Just so y'all know, not all 2088's are created equal apparently. You can tell the older ones from the newer ones by the label. It seems the older ones hold up better.
Jim
Shurflo makes so many different models of the 2088 pump the good 2088 models are in the $200.00 range,
Would never known about different versions, was about to swipe the card for $70 on a new 2088. Tickled to save coin and the old one which was working fine except for the leak.
Hey Van, changed signature? got tired of them talking boulders? You moved away? scared someone will seek you out now? lol
Quote from: windtrader on September 11, 2020, 09:40:08 AM
Would never known about different versions, was about to swipe the card for $70 on a new 2088. Tickled to save coin and the old one which was working fine except for the leak.
Don the $70 version you buy 2 because 1 is going to stop working
That is the story with the new ones anyway, the old ones had a sterling reputation however. You can tell the difference by the labels. The old ones had a border around the label. They kinda shot themselves in the foot with their move to foreign manufacturing I guess.
Jim
Hmm... I thought Flojet and Sureflo were different brands. But then what do I know? Could be the same manufacturer I guess.
Jim
Jim - my post was so stupid I removed it. Thanks for being kind. Yes Flojet, not Shurflo. Must be all the ash that's messing my brain. Correcting my pump - It is a Flojet 4406, not s Shurflow. Anyway, got the filter sealed and back in service. Going to work on soundproofing today.
don
I've heard the Flojets are pretty good too, but I don't know if they fell prey to the same thing the 2088 did. Maybe not? I've heard the more expensive Surflo's hold up pretty well to the old standards but the 2088 just became a cheap pump with poor quality control. They really should fix that if they haven't already.
Jim
We've had our 2088 for almost three years now, and so far so good. I did order a spare shortly after installing the pump, but have not had need yet. Paid about $45 for the first one and $69 for the second. The pump I have is 3.5 gpm and 45 psi.
I bought a Shurflo Whisper King 2093-204-413 back in 1996 based on board comments, and it's still going. It's not a current model, and was replaced by another that might very well be Chinese.
We carry a brand new plug & play Shurflo. Will probably never have to change it cause we're carrying a spare...
thats the way it usually goes... Im think of hauling a spare engine and transmission.😊
Maybe tow a spare bus...
Over legal length, but that would do it and I can carry all my tools and equipment, maybe a forklift in rear if I would use an MC-7 Combo with ramps.