I think they’re joined together in series, like Harry suggested. Our plumber also said that the pipe between is narrow diameter so that’s not helping. a parallel set of connections to T5 would help but at this point, I’m not sure if the water supply could cope with 4 tanks rapidly emptying!
Sorry for the terse reply. I was rushing to work and didn't have the time to say any more other than acknowledging the reply!
I had a good talk with the plumber a few hours ago and as far as I understand this is the problem.
The main issue is that there are 5 x 20 litre tanks in the 'attic'...
OK, just an update. It turns out that because this was a bungalow originally, for some reason there wasn't the space to add a full size tank in the attic, so they added 4 or 5 (!) smaller tanks instead which are not providing the necessary pressure to the system. Apparently what needs doing is...
He's not fat - it's just stupid small! Seriously it's around 14" square and I have no idea who the hell can fit through that other than a small child! We looked at increasing the size of it but its that size because the joists are that far apart! Its an old bungalow that's been converted to have...
My daughter just reported that the hot water in the kitchen started working again suddenly but is now taking around 20mins to start flowing. No one’s touched it as it’s Sunday, feels like the plumbing god is fu**ing with us and having a laugh.
I believe he has tried back flushing it. We don't have hard water in our area, luckily. Not sure what the pipework is but probably copper. Hopefully, he'll be able to sort it out. Whatever it is it seems to be after the junction with the downstairs loo. I guess he's looking there.
Just an update. It looks like there’s some sort of physical block in the pipes. After some tinkering (some sort of pressure pump applied apparently) the downstairs bathroom started working but the blockage appears to now be holding and immovable. The plumber says it feels like there a tap...