Had some water leaking from my hot water tank through the turndish only when hot water was on from my boiler, searched for a local plumber through gas safe website. He came out done a check and said it was my expansion vessel. He drained it and tried putting air in it and wasn't filling with air. He replaced it a few days later no problem and so far so good.
Now being nosey i searched to find out more and have a couple of questions.
1. He took it straight from the box and fitted it. I now know it was precharged (don't know the exact pressure) but what if the pressure was not high enough or to low. Hot water tank is in a small cupboard so i held open the door and watched him install it.
2. The important one i suppose (from reading these forums). He was registered as vented but i believe that my system is unvented. Hot water tank with 2 EV (white and red). I looked at a few more local and further afield and there is no unvented qualification on the gas safe website. I'm hoping he is qualified.
Wanted to check here first before making any phone calls
Cheers.
Now being nosey i searched to find out more and have a couple of questions.
1. He took it straight from the box and fitted it. I now know it was precharged (don't know the exact pressure) but what if the pressure was not high enough or to low. Hot water tank is in a small cupboard so i held open the door and watched him install it.
2. The important one i suppose (from reading these forums). He was registered as vented but i believe that my system is unvented. Hot water tank with 2 EV (white and red). I looked at a few more local and further afield and there is no unvented qualification on the gas safe website. I'm hoping he is qualified.
Wanted to check here first before making any phone calls
Cheers.
