Plumbing advice needed!!

[KLT]

We've moved into this house last month and for the first week we were able to drink the cold water from the kitchen tap no problem and we used the washing machine to the left of the kitchen sink that the previous owner left.

Then my new Hotpoint washing machine and dishwasher arrived from Boots and I paid the extra for them to install them either side of the kitchen sink. Since they were installed I can no longer drink the cold water, it looks fine but tastes awful. Northumbrian water came out but its nothing to do with them as the 1st draw into the house is into the downstairs toilet and and the cold water from there tastes fine.

I've asked 2 plumbers who haven't even tried to help because they can't understand why it could happen, and now I'm left thinking will I have to fill my kettle from the sink in the toilet all the time I live here?!!

So for anyone out there with plumbing knowledge, if you were in this situation, what would you do?

NB: Don't know if this is relevant at all but the night before Boots arrived, we had to remove the old washing machine. It was difficult to see under the sink and when a blue valve was turned on one of the pipes it snapped off. My father in law replaced it the next day before Boots arrived, but he has no plumbing knowledge, so I don't know if possibly incorrectly installing the valve could play a part in this or be irrelevant, God I wish I understood plumbing!

 

[Plumbstar Tom]

does it taste of detergent then?

Can you get to turn off the supplies to the washing maching and dish washer and then run the kitchen tap for a bit and then try it?

 

[wheeto]

Could just be residual flux from a new joint. Have you tried flushing it properly (let it flow for a good few minutes) and trying again?

Edit: although seeing the bit about the replaced valve leaves me wondering about an incorrectly-installed check valve.

 

[KLT]

I've let the water flow for 5 mins and if that doesn't help I'll get my husband to turn both of them off when he gets in. Thanks both of you for trying to help

 

[justlead1]

Hi. The Water Co have the facilities to test a sample from the tap and report on findings. This may help in your investigation if it persists ?

 

[Jacky Blue]

hi klt,

hhmm, seems to be tricky, of course, I would also turn the water off, that makes no sense.

I had some months ago same problems in our neighbourhood and my pretty Tanja, a good friend of mine ordered a .................................................................
didnt see that before, but it was a great help as the vibe of the machine stoped, she placed the mat under the washing machine. She said that prevents a discharge.

maybe this helps

cheers
jacky

 

[Plumbstar Tom]

stopping it vibrating is not the issue though so dont waste your money on that

 

[REDSAW]

what does neighbours water taste like?.

water board here charge £120 if nothing wrong with quality.

is your local resevior running low.

disconnect appliances and start from scratch. check water quality with nothing attached.

is the check valve wrong way on one appliance?. you could be drinking hot water?.
ie. hot into dishwasher, cold to w/m crossing via c.v.