Some advice on two different problems please?

[fuzzy]

i dont get why there are tees before the pump? does your hot water get hot? the cylinder stat is to control the tem of hot water and should be 1/3rd of the way up, it seems half way up

 

[fuzzy]

how long has it been like this? since it was piped?

 

[tweakyboy]

Pipes before the pump must be feed and other must be open vent, explains why one is 15mm and the other is 22mm.

Also I would swap that elbow above the pump and put a tee in there with a automatic air vent on the top, instead of the current position of the manual one on the heating side.

 

[tamz]

It is not much of a bypass coming off the wrong side of the pump

 

[Dannypipe]

It is not much of a bypass coming off the wrong side of the pump

Agreed, a proper bypass valve, installed in the correct location may sort this issue.

Also, the cylinder stat is too high.

 

[tweakyboy]

It also looks to me like the feed/open vent are the wrong way around before the pump, could be that the pump is sucking air in!

 

[coursemyhorse]

Ok thanks for all the responses. I'm now slightly concerned at all the number of suggestions about the piping being bad! Erm...so if I got someone out to sort this what costs would I be looking at? The cylinder stat I will turn down. Yes the HW gets hot, just takes a while to come through to the tap when demanded. And yes, it's been like this since we have rented in this property. I want to fix it though as we like it here and may stay a while as aren't in a position to buy for the next few years.

 

[Gray0689]

Yes put in auto bypass and your plumber didn't like clips

 

[diesel_ltd]

the tee before the pump is the by pass with a ballafix valve, there is no open vent in these pic,

 

[diesel_ltd]

have the bypass sorted you will need to get a plumber to do this for you but it is down to your land lord to sort it, at the end of the day thats why you pay RENT

good luck