Water pump
- Thread starter susarich
- Start date
SquirrellCook
Forum Member
What we need to know is about what other water features you are planning and have.
susarich
Forum Member
Shower, sink , truma combi boiler no ponds or fountains.
SquirrellCook
Forum Member
So I guess you are wanting a pressurised system and an expansion vessel?
Squiffy
Forum Member
In my view there is only one type of pressurised pump and that is the trail king shurflo, I've tried the equivalent in Fiamma and although it worked well it was noisy and is now languishing at the back of the shed. I've always in the past used Shurflo but found the Fiamma one cheap at a motorhome show when I was building my present van. Phil
P.s. I went out and bought a Trail king 7 after our second trip out in the newly converted van, at the time that is.
Squiffy
Forum Member
I've never bothered with an expansion tank Squirrell, I bought one once and it made no difference to the flow I've never had a fluctuating flow it's always been constant. In fact I took it back out to give me more space under the sink and gave it to someone on this forum, can't remember now who it was,
. Phil
SquirrellCook
Forum Member
They have to be set correctly and of the right size to suit your system.I've never bothered with an expansion tank Squirrell, I bought one once and it made no difference to the flow I've never had a fluctuating flow it's always been constant. In fact I took it back out to give me more space under the sink and gave it to someone on this forum, can't remember now who it was,
SquirrellCook
Forum Member
I was looking at these pumps, but stock comes and goes.
www.seaflo-uk.com
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SquirrellCook
Forum Member
Sprinter 1 cup
Forum Member
I turn pumps on and off as needed . Its up to you but , they ar e a lot of noise, the pump recommended you shouldn't need . 1 expansion thing . 2 non return vales . So you save on them . I put 2 pumps, 1 hot and 1 cold for 12mm pipe and uesed 15mm mono taps looks good and are flow adjustable. Thanks to this site.
susarich
Forum Member
So you have two pumps? So upu have to turn both on as and when needed?
Squiffy
Forum Member
Sorry sprinter but I really don't understand the need for two pumps as 1 pump can supply both hot and cold water with no need for any non return valves. I've used this system for 25 years without a problem. Intact my wife is doing the washing up now and if I required a shower I could have one now with no problems with the pump supplying hot to my shower and her washing up in the sink, including suppling cold in the mixer if required.
. PhilP.s. OK I have to admit that I'm using a Truma combi but I really don't think that makes any significant difference.
susarich
Forum Member
What sort of pump is ypurs? Do you turn on and off?Sorry sprinter but I really don't understand the need for two pumps as 1 pump can supply both hot and cold water with no need for any non return valves. I've used this system for 25 years without a problem. Intact my wife is doing the washing up now and if I required a shower I could have one now with no problems with the pump supplying hot to my shower and her washing up in the sink, including suppling cold in the mixer if required.
P.s. OK I have to admit that I'm using a Truma combi but I really don't think that makes any significant difference.
Squiffy
Forum Member
It's a Shurflo trail king, yes it turns on and off by opening and closing the taps or shower tap. Opening a tap releases the pressure in the system which in turn switches on the pump, by closing the tap the pump continues to pump till the pressure is built back up in the system which triggers a pressure switch incorporated in the pump and turns the pump off, this all happens in 3 to 4 seconds of closing the tap. When reopening a tap the pressure built up in the system gives an immediate flow of water and the pump restarts and keeps up the flow until the tap is closed and pressure rebuilds and again the pump shuts down. The pressure in the system stays good for days even with the 12volt system powered down, provided the pipe work is done correctly. So I can switch off the 12volt supply leave the van for two weeks and then open the tap and the residual pressure in the system will give a flow of water for about 20seconds till the pressure is depleted, but ofcourse without the 12volt supply being switched on the pump will not reactivate and the water flow stops. Simples. Phil
P.s. The taps I use are standard domestic taps you could buy in B&Q with ceramic valves, (Though I buy all my taps off ebay) these taps should not be confused with caravan taps which are controlled by micro switches incorporated within the tap which turn off and on a rotary water pump electrically, these taps are in my view a pain in the backside and go wrong invariably and are also extremely expensive for what they are.
P.s. The taps I use are standard domestic taps you could buy in B&Q with ceramic valves, (Though I buy all my taps off ebay) these taps should not be confused with caravan taps which are controlled by micro switches incorporated within the tap which turn off and on a rotary water pump electrically, these taps are in my view a pain in the backside and go wrong invariably and are also extremely expensive for what they are.
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susarich
Forum Member
Wow thanks for this, so there is no drop in pressure and no splattering of water? I have bought a normal mixer tap, was just praying it would work. Lol.
Squiffy
Forum Member
The main problem that folk come up against if they use 12mm pushfit pipe work is joining domestic 15mm tap tails to the 12mm pipe, but this is actually easy by buying 12mm push fit to 15mm adapters that can be found easily on ebay. Trying to find them at a local plumbers shop is a no no, as in general plumbers never use 12mm and they look at you as though you don't know what your talking about when in point of fact its the other way round . When using John quest pushfit connections the secret is to make sure the ends are cut square and no burrs, to make sure that the pipe is pushed in as far as it will go, if this is done correctly you will never have a leak.Some folk use 15mm and say that you get a better flow, but honestly I have in the past used both and there in my observation is no difference and 12mm flexible plastic pipe is far easier to fit in awkward areas with the added bonus of colour I.e. Red for hot and blue for cold and any amount of different bends and straight pushfit connectors available from places like Magnum motor homes and ebay. Magnum motorhomes by the way was my favourite go to as they have most of what you want when building your own and at a reasonable price plus they deliver within 2-3 days sometimes next day or used to when I used them.Phil
. When using John quest pushfit connections the secret is to make sure the ends are cut square and no burrs, to make sure that the pipe is pushed in as far as it will go, if this is done correctly you will never have a leak.Some folk use 15mm and say that you get a better flow, but honestly I have in the past used both and there in my observation is no difference and 12mm flexible plastic pipe is far easier to fit in awkward areas with the added bonus of colour I.e. Red for hot and blue for cold and any amount of different bends and straight pushfit connectors available from places like Magnum motor homes and ebay. Magnum motorhomes by the way was my favourite go to as they have most of what you want when building your own and at a reasonable price plus they deliver within 2-3 days sometimes next day or used to when I used them.Phil
SquirrellCook
Forum Member
I have enough trouble getting Anita to let me use 15mm let alone 12mm. Anita use to be a real plumber, so it’s only copper for her.
Squiffy
Forum Member
Have you seen the cost of copper pipe and fittings recently, it's skyrocketed in the last 2-3 years. I needed some pipe and fittings to run water out to my green house, I ended up running garden hose to the green house and just a short length of copper pipe that I had left over from a previous job, to attach the bib tap.
Phil.
SquirrellCook
Forum Member
Outside I'd use plastic, even the thick wall blue stuff fails with frost. So easier to replace the better.Have you seen the cost of copper pipe and fittings recently, it's skyrocketed in the last 2-3 years. I needed some pipe and fittings to run water out to my green house, I ended up running garden hose to the green house and just a short length of copper pipe that I had left over from a previous job, to attach the bib tap.
The runs under Murky are done in some twin wall plastic, no troubles to date.
I have to do as the boss says or the quality of life drops
Sprinter 1 cup
Forum Member
When I joined 12mm to 15mm it just leaked. Tighend still leaked !.
Put 2 rubbers washers in 15mm end , It shorten the gap for no leaks.
So aways use rubbers on some use 2. Lol
Put 2 rubbers washers in 15mm end , It shorten the gap for no leaks.
So aways use rubbers on some use 2. Lol