prevention

I am adding a new bathroom on the first floor of my house and there is limited space to run the drains to the existing soil stack. I have bought a branch connector for the soil pipe (see link) and was hoping to be able to join the shower and basin drain into one of the 40mm side bosses but have...

I have a 1st floor block wall with doorway to build and was wondering if I should mesh the door corners. Low ceilings provide only 9.5" above the door frame. The wall isn't loadbearing and is perp to an exterior wall that has no cavity in it's lower half. Does it make any difference to increase...