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The gradient of the pipe is pretty much bang on level. Would this be a problem?

I had a peek into my 110m toilet waste pipe under the floor boards from a boss entry. There is standing water inside (maybe about 20% capacity of the pipe). Is this normal or does it suggest incorrect gradient or blockage?

Are there any issues with a boiler condensate pipe being installed almost exactly vertically downwards from the boiler to the waste pipe? The current installation has a 90 degrees bend quite close to the boiler before dropping down but I need to reroute it.

dealing with them is hard enough at this time

Uh oh. I shall use with caution!

Thanks will do that

Just to confirm, we are talking about the floorboards which go over joists? I need to replace a missing/damaged section.

No, they are not tongue and groove. They have lasted since 1899!

Oh crap, I did not notice that! Does anyone know where I can buy appropriate floorboards? The current floorboards in my old house are 18mm x 154mm

I need to install some floorboards: https://www.builderdepot.co.uk/22mm-x-150mm-softwood-par-square-edge-flooring-6in-x-1in If I buy this product, do I need to apply some sort of wood protector before installing? Any product recommendations?

Thanks, appreciated.

so that's a definite no?

Let’s say I will be installing a thermostatic rain shower where the red pipe is. Would it make any positive difference to the pressure or flow if I ran a 22mm pipe from my combi boiler above down to the level of the shower? The pipe will then tee off to toilet/sink/kitchen.

It is a void between a non external brick wall and cement board which was mounted onto battens. My plumber was happy to run a gas pipe down there!

Thank you. And if I go for the 3m straight version, would it be okay behind a wall for about 1.8m without any intermediate wall clips? I would use copper but my loft ceiling not high enough to feed it down so need a tiny bit of flex in the pipe to get it down. I will clip at both ends.

Can you use copper compression fittings on JG speedfit?

Is a crack in an old joist a concern? I would like to build a stud wall below this end joist to leave a void behind for soundproofing/services.

The 22mm worked in the end. I am blanking it off because this pipe is connected to the two flats below and want my own feed from the loft separate to theirs. I will remove the entire pipe section once i get the bath off, and the main pipe has a convenient tee to which I can just put a cap...

A 3/4 inch blanking nut doesn’t fit this ancient stop cock. Would a 22mm one most likely work?