I've been getting to know the plumbing in my house a bit better in the last couple of weeks. One of the things which struck me as an oddity when I first spotted it a while back was that the cold water tank in the loft has two ball valves (one of which I had to replace recently because of a dripping overflow). That is, a single pipe comes up and then forks into two, each going to a ball valve.
Now I understand rather better the way the indirect hot water system works, I am assuming that this is because the tank, at 25 gallons (95 litres), is rather small so could empty quite quickly with a power shower in use. The extra ball valve was presumably put in when the shower (with pump) and bidet were put in (before we bought the house). I imagine the idea is that this will considerably increase the refill rate (although presumably not double it, as only so much water can go through a pipe).
Given that the system has worked OK for the 8 years we've been living here, there are clearly no major problems with it. Is there anything I should watch out for, though? Any downsides to this I need to be aware of?
Now I understand rather better the way the indirect hot water system works, I am assuming that this is because the tank, at 25 gallons (95 litres), is rather small so could empty quite quickly with a power shower in use. The extra ball valve was presumably put in when the shower (with pump) and bidet were put in (before we bought the house). I imagine the idea is that this will considerably increase the refill rate (although presumably not double it, as only so much water can go through a pipe).
Given that the system has worked OK for the 8 years we've been living here, there are clearly no major problems with it. Is there anything I should watch out for, though? Any downsides to this I need to be aware of?