Found this on a job today

[tonytheplumber]

Went to look at a job today and found this,pumping hot water straight back into the cold feed for the cylinder.


Would i be right in thinking that the "plumber/builder",(who has been thrown off the job)was trying to run a secondary circuit?

 

[SafeGasInstall]

Went to look at a job today and found this,pumping hot water straight back into the cold feed for the cylinder.
View attachment 14063
View attachment 14064
Would i be right in thinking that the "plumber/builder",(who has been thrown off the job)was trying to run a secondary circuit?

sorry i got lost

 

[Rickster123]

Did you get any more pics tony?

 

[plumber0808]

Yes it will be for a secondary hot water circuit if its piped back into the cold before the cylinder

 

[Dotty]

Or possibly anti cav.

That doesn't look like a bronze or stainless pump though!

 

[tonytheplumber]

Just trying to get my head round what the previous plumber has done,I've never seen anything as bad. There a 5 bathrooms all on the one stack pipe with no vent,needless to say the smell is a bit pungent.
ill get some more pics up tomorrow,think ill be there for a while!
back to the pump,I'd guessed it was a secondary circuit but should the pump be running 24 hours a day? It was just plugged into a socket.
thanks in advance

 

[SafeGasInstall]

drain down and do your OWN investigation ....
secondary hwp should be on a timer or thermostat or both

pls post mo pictures

this pump its not a bonze so must come out me think

 

[Dotty]

It's a smart pump so it can be on 24/7 as it builds up it's own database of usage times and flow rates. It would also run a disifection cycle.

Well it would if it is a secondary pump and not a circulating one!

 

[lame plumber]

looks like a first years bay at college

 

[SimonJohns]

Lol reminds me of many hotels I have worked in where the on site maintenance has tried their best to get the hot water around

 

[Gray0689]

That's a grundfos magna pump it's not bronze and its about £350 to £550 lol

 

[stevetheplumber]

isnt the magma dual use?

 

[Dotty]

It should be, yeah Steve, but looking at the rust starting on the threads there he's used one of the old batch that weren't dual use.

 

[tonytheplumber]

I spoke to grundfoss this morning and that is a primary pump. I've added a couple more pics of the quality workmanship.

 

[Rickster123]

What is that around the flue? Tape??

 

[SimonG]

I don't like the d2 discharge either.

 

[tonytheplumber]

What is that around the flue? Tape??

Duct tape!

 

[tonytheplumber]

It discharges on the floor in the corner of the garage

 

[SafeGasInstall]

They have fitted the bronze pump on the heating

 

[Killy Bing]

I was just looking and thinking..... I swear yellow = bronze or an absolute ancient pump, the type you find bricked into the chimney on a back boiler.

 

[SafeGasInstall]

I have never fitted a WB vertical flue but I am sure try need a vertical adapter .....

Just make sure that is there and flue is been installed correctly .....

That tape there makes me little suspicious tbh ! Over all install is not that bad but if you are taking over the job take time drain down and do your own investigations
i did not see a auto bypass but look for it or fit one

 

[Destroyer2813]

Yep right Stan Worcester vertical flues come with a adapter and NO duct tape in the box

 

[Destroyer2813]

D2 ha ha tundish staright on top of a polyplumb elbow nice.

Was the previous bloke even Gas Safe ?

 

[Gray0689]

isnt the magma dual use?

Only if the front is in silver that's a heating pump only

 

[Ermintrude]

What's that on lhs of ufh manifold trv? Where are ufh zone actuators?