sleeve

I've run a bunch of pipework (Polybutene - PB) for central heating and hot water what will be under a concrete slab and while most of them are insulated and inside some waste pipe offcuts to protect from expansion etc, there are a couple I forgot. Rather than having to drain and re-plumb I was...

Hi there, I have a 6mm 3 core SWA running to the garage and need to sleeve both the black cable (earth I think) and grey (neutral I think). The wires look like being 4mm in diameter so am right in simply saying I need to buy 5-6mm sleeves? Cheers

How do I replace and fix this? The base trim in my basement bathroom was soft them molded, clearly it wasn’t typical moisture. I demolished the area and found wet framing, and then realized the waste line neoprene/silicone coupling or sleeve was leaking just slightly each time the upstairs...