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Post by JohnV on Apr 19, 2017 10:32:54 GMT
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Post by lollygagger on Apr 19, 2017 10:43:49 GMT
Where!!! I'd saw the f##**##** pipe in half if the ###***## water would come out.
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Post by lollygagger on Apr 19, 2017 10:49:58 GMT
If it comes to replacing the calorifier should I consider a balanced flue gas instant water heater? I think I've read these are BSS friendly. Do these get on ok with showers?
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Post by lollygagger on Apr 19, 2017 11:37:36 GMT
Apologies for going on. This is my best picture of cold in. That hose clip looks dodgy. Obscured by the other pipe and lagging is a standard copper swept bend. The bit screwed directly into the cylinder must be the non return valve? This would be a smaller hole to let the water out as long as I can keep up with bailing out. Then I could fit a non return valve back along the pipe and a drain point between for the future.
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Post by JohnV on Apr 19, 2017 11:59:40 GMT
Where!!! I'd saw the f##**##** pipe in half if the ###***## water would come out. sorry .... I thought I was being helpful ...... went back and read all your posts properly
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Post by lollygagger on Apr 19, 2017 12:02:46 GMT
Where!!! I'd saw the f##**##** pipe in half if the ###***## water would come out. sorry .... I thought I was being helpful ...... went back and read all your posts properly That was my exasperation at the situation, not at your contribution, hence the All ideas gratefully received.
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Post by lollygagger on Apr 19, 2017 12:09:45 GMT
I'm now thinking the bit in the cylinder is just a male/male fitting to allow the elbow compression fitting to point in the right direction. Where can the non return valve be? This is the only other fitting (the thing at the bottom), surely this is just a simple check valve? I switched it off last night, it was on while I was trying to drain yesterday.
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Post by JohnV on Apr 19, 2017 12:22:24 GMT
it certainly looks like an ordinary check valve
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Post by lollygagger on Apr 19, 2017 12:28:06 GMT
A little water did come out yesterday, about what you'd expect from opening a couple of taps. Perhaps there's a check valve stopping the hot going back into the cylinder. That would stop it draining?
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Post by lollygagger on Apr 19, 2017 12:29:54 GMT
it certainly looks like an ordinary check valve well I just checked and the hot has no pressure now so it must be, non return valves are longer from what I've seen googling.
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Post by lollygagger on Apr 19, 2017 12:47:18 GMT
Another clue. All taps open on sinks. That ball valve open. Drain attached to cold feed between accumulator and everything else and switched on. That valve is one way but the right way.
Nothing. If I suck on my draining pipe and stick my tongue on it, it holds the vacuum. Would this possibly point to some one way valves in the feeds to the taps preventing air getting in?
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Deleted
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Post by Deleted on Apr 19, 2017 12:56:38 GMT
Nothing. If I suck on my draining pipe and stick my tongue on it, it holds the vacuum. Would this possibly point to some one way valves in the feeds to the taps preventing air getting in? My opinion - Yes Can't give advice about how to let air in but once you have found it I suspect it will become obvious. Here speaks someone who moved a very large 'water tank' after he had supposedly drained it...
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Post by lollygagger on Apr 19, 2017 12:59:24 GMT
Nothing. If I suck on my draining pipe and stick my tongue on it, it holds the vacuum. Would this possibly point to some one way valves in the feeds to the taps preventing air getting in? My opinion - Yes Can't give advice about how to let air in but once you have found it I suspect it will become obvious. Here speaks someone who moved a very large 'water tank' after he had supposedly drained it... Can't find them so I'm going to crack a hot feed pipe on top of the cylinder. Back in a mo.
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Post by lollygagger on Apr 19, 2017 13:06:28 GMT
That didn't work, still holds vacuum so back to the cold feed.
I'm a bit fed up with this.
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Deleted
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Post by Deleted on Apr 19, 2017 13:17:03 GMT
Not able to help much but,
I disconnected all pipework and then found a way of moving the cylinder (involved building a platform on rollers), after that fiasco and half way through replacing the floor that cylinder was sitting on, I was wondering what some knob/screw did, cue a bit of fiddling and I found out! No air in no water out...
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