Which valve do I need for this

[ShaunCorbs]

Long story but I moved into a flat and within months had come out in a rash, over time my skin worsened (looked like burns) as did my health yet no one could figure out what the issue was. I moved out for a while back to a friends house and my health improved then I returned back to my flat and the same situation occurred, countless visits to skin specialists. The landlord and I had agreed to low rent for a fixed period of time as long as I took care of fixing things which I agreed to as he spends a lot of time abroad, I didn't think there would any issues as he had the place refurbished and the bathroom had a new suite installed.

There was a leak last month and I had a reliable/verified plumber come out, he checked everything and noticed that in the bathroom the plumbing was incorrect and mentioned the words "cross contamination". I told him about my skin etc.. and he said this was most likely the cause, I contacted the landlord who said that "he couldn't remember who carried out the work for the bathroom" and that no one else had a issue with it but then again the flat was empty after refurbishment and along came stupid me.
This is the reason I am trying to find out what causes cross contamination, the health implications and how to fix it.

tbh its your landlords responsibility to sort / fix things

do you have a combi boiler or a cylinder?

 

[BobbyJoe]

A combi boiler and just before I moved in there was a cylinder, which is why the landlord decided to fit a new bathroom suite.

 

[ShaunCorbs]

A combi boiler and just before I moved in there was a cylinder, which is why the landlord decided to fit a new bathroom suite.

as its a combi boiler you wont have cross contamination, and shouldn't need to fit check valves

as its equal pressures

 

[moonlight]

The only time you may get cold going into the hot supply, and that would be only if the particular shower you have supposed to have check valves. Then you would be questioning the temperature of your water. Even this would not cause contamination to your water.

 

[zzzjim]

Run the cold a little before brushing your teeth if you are worried .
Check it is cold !
( Drinking what comes out of an old copper/soldered cylinder more of a worry ! )

 

[moonlight]

Just out of interest, a few questions.

1. Does anybody else in your family come out in a rash?

2. Do you have a water softerner?

3. Where does you water come from?
(E.g.. mains or other supply).

 

[diptin dogshi..]

Legionnaires' disease - Wikipedia
Doesnt sound like it though?
Could it be a dead leg or possibly some other household on the same supply eg next door with an unvented system
And a pumped hot mains cold w/o check valves?
Hi everyonebtw,sorry for my twopenneth, just interested as ive come across aa similar problem with a stuart turner single impeller hunting due to lack of check valves....

 

[student plumber]

Is your toilet cistern fill valve set correctly.
I ask because I have seen a video of a toilet cistern that had been flushed.

It then filled up over the height of fill valve, then the water was being sucked back out of cistern.

They turned on the kitchen tap, and it was blue from the cistern block, other neighbours were reporting blue water as well.

A plumber who works for WRAS came to our college and played this video, the water came in then it went back out.

 

[student plumber]

Could be a dead leg as diptin said, the muck will collect then at some point it is pulled into the system and out the tap.

 

[cmel1975]

normally happens with lets say a shower with no check valves internally

mains cold and tank hot, the more powerful mains pressure will push back up into the hot cylinder and then back into the tank supplying the hot cylinder and cause it to overflow

What contamination issue is that then.