I thought about that actually, I'm going to put the pumps further down than shown here, where there's space to access them (and the PHE further up)--there's very limited closet space so I want to try and keep the upper half completely free for linens
ended up drawing up the layout for the pipework, cause I couldn't figure out in my head how to fit it all in the airing cupboard O.O thought I'd share the result.
yes, just because something is considered common or standard practice, doesn't mean it's right, things are constantly changing, reverting, just, some people think and experience, others just do/follow orders.
I know that in the US, it's common to find some aluminum wiring (60's/70's) combined with copper. In the US, connector blocks with screws as used in the UK don't exist, and they use twist-on wire nuts (like in cars or the ceramic ones that used to be used in the UK). Fires often occur where...
good luck, I don't think I should say anything anymore, I guess you can call it experience with how to communicate and extract advice from obstinate professionals, maybe it's not possible
no, but you can twist the strands together instead of crushing all the small individual strands by a pointed screw in the terminal (stranded 4/6mm cable)
I guess you're right. I think twisting prevents screws working loose from when the copper expands and contracts from heating/cooling down though (I wonder how many blackened cooker/immersion heater switches in the world have suffered from this)
if none of the switches are earthed, i'd replace the brass ones with plastic and get some plastic screws if you're worried about it. Unless you want to rewire the whole house right now, extend the circuit to the loft lights with regular T&E as you've described and snip off the earth or put it...
I've noticed that most fittings that have those screws that go into the side of the base with a turn and secure-type thing need an earth connection. Alot of ikea lights are designed to not need an earth for some reason. Maybe have a look?