Problem is thus -
Old bodge job done in en suite before we moved in. Rubbish ball cock set up leaked for ages - sorted ready for new kit. Now cistern is coming away from wall - apears to be bear brick behind it! This has caused (In one night) the pipe to the pan to come loose and is leaking.
Drained cistern and turned off water supply.
Questions - Will plastering over the hole atthe back be strong wnough to support new plastic cistern skrews?
How does one fit a new cistern - DIY novice manage it?
Manythanks for any advice