Water pump location

[Tawdbb]

Can I stick my pump in a sealed cabinet? Or does it need air flow?

[Rwnielsen]

I've never seen one that required air flow. You'll want to make it accessible for service or replacement but, otherwise...

[kazetsukai]

Mine is behind my shower wall, along with the blower heater loop and water heater. Two hatches allow access. Heater also has exterior access, so no biggie there.


(You don't see it in there, its above)




Just keep in mind what happens if you spring a leak... at least have a way to shut it down.

[ol trunt]

I used two water pumps - one for hot, one for cold. They are both housed in the sealed off on demand water heater cabinet. Should either pump leak the water would flow out under the bus harmlessly. I have a shut off valve inside the bus as a safety backup.
Jack

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[Romoshka]

I’m in the planning phase. No bus yet to grace my driveway. Lots of paper with drawings and links to bits all over my drawing table. Why 2 pumps? What advantage did you see?

[ol trunt]

I went with two pumps and two accumulators because I have a recirculating system on the instant hot water side. The water heater requires a constant pressure and flow to stay ignited and having a separate pump allows me to use both hot and cold water without the heater cycling. Also, dual pumps gives me 50% redundancy should one pump fail.
Jack

[Romoshka]

Ok. I’m learning. This recirculating system, is this a floor heating system or some other system. Also are you running your pumps off your batteries and if so how does that constantly running pump effect the battery bank.

[ol trunt]

The system is only for potable water and since the faucets are used only every now and then the pumps really don't use much battery storage since they only run when the tap is on. The system would NOT work to heat the bus.
Jack

[Rwnielsen]

Originally Posted by ol trunt

I went with two pumps and two accumulators because I have a recirculating system on the instant hot water side. The water heater requires a constant pressure and flow to stay ignited and having a separate pump allows me to use both hot and cold water without the heater cycling. Also, dual pumps gives me 50% redundancy should one pump fail.
Jack

I'm going to steal this idea if you don't mind

[TheHubbardBus]

Originally Posted by ol trunt

I went with two pumps and two accumulators because I have a recirculating system on the instant hot water side. The water heater requires a constant pressure and flow to stay ignited and having a separate pump allows me to use both hot and cold water without the heater cycling. Also, dual pumps gives me 50% redundancy should one pump fail.
Jack

Jack, regarding redundancy...


If one did fail, would you only have cold or hot water, depending on which one failed? Or do you have a quick & easy way to make one pump do the job of both?

[ol trunt]

I don't but it would be simple to plumb it that way.
Jack