Do I still need to do a closed water test after tiling in the bathroom?

I am the owner of a professional decoration company, let me tell you, the waterproof test is best to close the water test before laying tiles, in case of water leakage, it is too late to make up again. Now that the tiles have gone up, then wait for the tiles to dry, scrape the gaps in the bricks, and use the water directly, and at the same time do the water discharge inspection. In case of water leakage, you will have to smash the tiles before installing.

In general, this is not a big problem. As long as you have dug the ground before renovation, because when the developer built the building, it was treated with water. Add to that if you do it 2-3 times when you decorate it twice, it's even more fine.

In extreme cases, many of the grouts used to attach tiles have the effect of draining water. In the construction of many garden flower ponds, fine cement and slurry are directly used to release water. This is the third layer of protection.

--Feel free to use it!!

1. The so-called closed water test refers to the completion of the waterproof layer and the drying of the material to the specified time, the door of the room with the waterproof layer with yellow clay, low-grade cement mortar and other materials to make a 30 to 50 mm water retaining strip, the floor drain and other blockages tightly, the ground water to form a depth of 20 to 30 mm deep small pool, water storage 24 hours later, together with the property department, downstairs neighbors, jointly inspect whether the lower floor slab is leaking, and jointly sign for acceptance. If there is leakage, redo or repair the waterproof layer, and then do the closed water test in the above order until no leakage is qualified. When the follow-up process is finished decorating the ground and laying tiles, the closed water test and inspection and acceptance are done in the above order.

Second, the specific steps of the closed water test:

1. Plug the floor drain.

First of all, put the prepared sand in a plastic bag to block the floor drain and prevent the stored water from running away. The plastic bag in this picture is the packaging bag of waterproof coating. Experts remind that after brushing the waterproof, this plastic bag should be kept for use in the closed water test, and you can learn from it.

Stick the sharp corners into the floor drain, and then plug the floor drain around it tightly.

2. Plug the cement at the door where the water may be full, and the ground is very low.

3. Drain water. The water should soak the entire ground of the closed water test, generally 1 cm is enough, but the water is afraid that the water will evaporate in the next 48 hours, so it is 2 cm high.

In principle, before the tiles were paved, the waterproofing and closed water test was carried out, in order to prevent the occurrence of artificial damage to the waterproof layer during the construction of the tiles, the closed water test should be done again after the tiles were paved for the second verification to ensure that nothing goes wrong.

No, you don't. Generally, before construction, it is necessary to close the water once to see how the developer's original waterproofing is.

After installing and modifying the water and electricity, redo the waterproofing and then do the closed water again.

What are you doing?

It's better to do it, otherwise it won't be clear where the problem is found later.

And it's best to test whether the floor drain is installed in the lowest position.