Buy a flush toilet, how good, the price is about 350. Be durable. Flush toilet

Simple instructions. One is the brand.

The second is quality. The third is style. >>>More

I suggest that you still say that you want to replace it when you buy a new toilet, so that the merchant will arrange for a professional to come to your home to replace and install it.

There are two main flushing methods on the market. One is the direct flush type, which uses the momentum of water to directly discharge the sewage. The other is the jet siphon type, which is under the condition of atmospheric pressure, using the siphon action formed by the flushing water in the drainage channel, and with the help of the water flow sprayed out by the jet hole under the water seal, the sewage discharge is accelerated. >>>More

As shown in the experiment, when the coarse straw is placed over the thin straw and inserted vertically into the water and raised slightly, the coarse and thin straws form a special siphon, and the water continues to flow down the thin pipe. Flush toilets also make use of the principle of siphons.

You can use toilet cleaner to remove, but I think it's better to use dilute hydrochloric acid, dilute hydrochloric acid into the toilet bowl some, cover the lid and soak for a while, the hydrochloric acid will quickly corrode away the stubborn stains, and then scrub with a brush and wash with water, so that the toilet bowl will become very white. However, when using hydrochloric acid, you must be careful not to get hydrochloric acid on your skin and clothing, and it is best to wear rubber gloves for protection.