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Cement pools can be used with some anti-leakage paint.
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If the tile has been glued, Jianyin uses a permeable K11 waterproof coating to do it, of course, if it is cheaper, you can use polypropylene, but there is no K11 insurance.
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It is recommended to use CQ101 waterproof sealing coating as a thick waterproof layer.
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You make a waterproof layer first, and you're carefree.
Completely sufficient, height is not a problem, just a lot of space. However, predators are not active by nature, and they basically can't see activities except when fishing or eating, so the interaction and ornamentation of predators are not strong.
You can build it with glass, add 6 points of 1 sand to the glass pool (it must have been washed, install a pipe at the bottom of the sand, and add a strainer, buy the thinnest net, and then the pipe will go straight to the sewer.
Just make a layer of coil directly.
4, more will fight and grab food.
Not good, the balcony is first of all an outlet to absorb anger, so change you to reduce such a valve. The second balcony is next to the bedroom or living room, and if you raise the pit by 25 cm, it will be higher than the bedroom or living room, and the water will moisten it, and the dirty smell from the toilet will flow into your room.