HVAC Questions? Ask an HVAC Expert for Answers ASAP
Good afternoon, and welcome to the Technical section in Just Answer, an independent paid question and answer platform that matches customers' questions to experts in various skills. My name is ***** ***** I'll be happy to help you today.I'm sorry to hear of your hot water problem.I can't tell from a photo of a valve what that valve is connected to, so you would need to attach a photo showing everything that's in the cupboard for me to be sure of working it out.However, where is the water emerging from? I suspect it's not related to the problem with the thermostat.
Ah, you have a combination cylinder. This is a cylinder with a header tank sitting on top. If that reservoir level is too high, water will come out of that warning pipe.The valve that you need to shut is the brass stop cock that's a few inches below the timer. The valve is in the lower part of your first photo.
I recommend that you do not use WD40, as (a) it's unlikely to reach the part that's stuck, and (b) if it did then it will pollute your water supply.
The best way to get it moving is with a ring spanner or a large adjustable wrench. If is frees off then that's fine, but it remains very stiff then be careful as that's when the spindle shears. When they are very stiff and/or the handle breaks off then you'll have to replace the stop cock. As it's not your property then of course you're taking on a liability that you might not want to.
You're welcome. And I do sympathise with the water wastage and the cost of it.Just a thought - if you measure the flow rate then you could ask your landlord to pay for the excess water used. If you take an ordinary kitchen measuring jug, you can use the stopwatch app on a phone to time how long it takes to fill it. Here's a worked example:45 seconds to fill a jug to the 500ml mark.Litres per hour =( 60*60) / 45*2 = 28.9 litres per hour.That would be 694 litres day. From that you can work out the cost of the water being wasted, but 694 litres is about 144 days of normal usage for the average household, so it could be a lot.