Hmm, gate valve? Before replacing the element, I turned a red knob on the inlet pipe to the immersion heater. It only turns a quarter of a turn. I've now tried turning it one way and the other, but it seems to have no effect. (This plumbing is ancient).
Regarding the pump working for 2...
Hi. I'm new here.
Yesterday I tried replacing the element in my immersion heater, as the handyman who normally does it (the element tends to burnt out every couple years), is having problems keeping appointments.
I followed instructions on the internet, and I thought I had completed the...