What is the ball used to test the water in the toilet?

Mothballs are divided into natural mothballs and synthetic mothballs. Mothballs containing naphthalene are mostly white, have a pungent smell, and sink in water; Natural mothballs, on the other hand, are smooth, colorless or white crystals with a fragrant smell that float in water. Natural mothballs, also known as stinky beads, are used to prevent insects, moths and mildew, which are originally aromatic organic compounds extracted from the branches and leaves of the camphor tree. >>>More

Here's a trick for you, put sand in a plastic bag and put it on the floor drain. Hope it helps. >>>More

Causes of blocked pipes, low water pressure, and stuck toilet valves.

There are several scenarios:

1. If the immersed buoy is stuck by the water tank wall or other parts, adjust its position; >>>More

'Flying water' is also called 'crossing water'. It's just that the ribs have to be rolled into the water and then cooked!