Is it feasible for our double bathroom to convert the master bathroom into a cloakroom?

Absolutely.

Transform into a cloakroom, it is necessary to seal the sewage pipe on the ground, and the sewage pipe can be sealed with a plastic bag before the floor tiles or floors are paved on the ground, but the sealing is not strong;

You can also buy a standard nozzle cap, and then add a layer of plastic bag to buckle and seal, so that it is best to have a strong seal;

After the sewage pipe on the ground is sealed, the waterproofing of the floor and wall of the bathroom can still be done in the same way, so that there can be another layer of protection, so that it can be better in the later stage.

It is feasible to convert the main bathroom into a cloakroom, and the underground pipe connections are covered with pipe caps.

If you need to use it in the future, here are a few things to do.

First, do waterproofing normally.

Second, all the water connections still enter the wall and are blocked with wire plugs.

Thirdly, all drains are closed with special pipe caps so that they can be used later.

Everything else can be used normally.

The two experts upstairs said it very comprehensively!