I have purchased an Aqualisa Quartz thermo (unpumped) to fit downstairs. The instructions say I cant use a mains cold feed and a stored hot water cylinder supply. I thought about a pressure equalising valve but aqualisa say this wont work because it will reduce the hot supply as well, they say these valves are very restrictive. I am trying to avoid running a separate cold tank supply due to the number of floors and fitted carpets I would need to lift upstairs, any ideas please. I also thought about a pressure reduction valve on the mains cold only but again Aqualisa say it wont work due to reduced flow.
Aqualisa shower valve
- Thread starter rdv123
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Either:
1. Balance the supplies;
or
2: Install a valve designed for unbalanced supplies.
To balance the supplies, you could take a cold feed from the cold storage cistern. If the flow is not adequate then you could install a dedicated shower pump.
1. Balance the supplies;
or
2: Install a valve designed for unbalanced supplies.
To balance the supplies, you could take a cold feed from the cold storage cistern. If the flow is not adequate then you could install a dedicated shower pump.
Did you actually read the post? If so your reply is of no help whatsoever.
H
holty
well with that attitude, im surprised anyone will help you.
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they adviced you on not using a valve, to equal the pressure.
you can't run it from mains cold.
your only option is to run a pipe from the loft tank which you don't want to do.
apart from that get rid of the shower and get one that suits your system.
you can't run it from mains cold.
your only option is to run a pipe from the loft tank which you don't want to do.
apart from that get rid of the shower and get one that suits your system.
H
holty
sure i fitted one not so long since and theres two models, one for gravity/pumped systems and one for mains pressure, both have different tapings. so using gravity feed ment for a pressure unit will not work.
the thermo is a standard mixer valve.
Thanks for the replies.
JohnD, people I have spoken to today agree with you. They seem to think Aqualisa are just stating the ideal when in fact a PRV on the cold feed should work. I'll give it a try, easier than taking up the floor and fitted carpets upstairs to run a cold feed from the tank.
JohnD, people I have spoken to today agree with you. They seem to think Aqualisa are just stating the ideal when in fact a PRV on the cold feed should work. I'll give it a try, easier than taking up the floor and fitted carpets upstairs to run a cold feed from the tank.
Yes - it indicates that you've bought the wrong valve and you don't want to do the right thing to remedy the situation.rdv123 said:
That's your opinion, but the fact remains that what I posted is correct.
Maybe you'll be one of the lucky ones, but you're seeking advice from people who happen to make a living out of solving problems expediently and reliably, so it doesn't matter how many other people tell you that you could fit a pressure limiting device - it's in the lap of the gods whether or not it will make the system work consistently.
So go ahead - hide your head in the sand and ignore the manufacturer's guidance. Maybe you don't yet know that Aqualisa is such an outstanding manufacturer that they'll even send an engineer out, FOC during the warranty period, to deal with faults. When they see how you've bodged the ar*se out of your installation they'll be entitled to laugh all the way back to their van.
well said 
Well lads I bought the wrong valve and have now been suitably told off for trying to find an easy way out. Appears there is little choice here i.e. change the valve or run a new cold feed. Surprised at the different opinions concerning the effect of PRVs are they really so hit and miss
No. There's nothing wrong with trying to find an easy way out - all of us do it all of the time. You were "told off" because you were a git when you referred to the correct information as being "no help whatsoever".rdv123 said:
I was already well aware of the correct way to do it and thats why your original post was not useful. Now it appears there is no easy fix only a difference of opinions on the suitability of PRVs. I did not insult you by name calling only suggested that if you had read the post it was clear that I was aware of the 'correct' solution. I turned to the forum for advice because people on here have a wide range of experience on plumbing. I build high performance car engines and should probably stick to the day job
If that were true then your initial post was particulary unclear.rdv123 said:
This is an illustration of how your attitude is blinkered, selfish, and gittish.
Other people may read this topic and benefit from the information, which is the main point of the forum, therefore it's unequivocably useful.
The fix seems pretty easy from where I'm standing.
It wasn't clear. If you want to make something clear, then I suggest you state it, rather than assume that people know everything that you know.
And I don't know why your bringing name-calling into this - it seems unrelated and irrelevant to anything here.
And advice is what you received. And a surly reply is what I received.
Well you haven't taken an engineering approach to the shower problem, so please let me know which engines you build, and I'll avoid them like the plague.
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