Can You Install a Siphonic Toilet with a P-Trap？

If you want to install a siphon toilet at home, generally speaking, the drainage pipe cannot be equipped with a water trap. So, can you install a siphon toilet if there is a water trap? Let’s take a look together.

Can you install a siphon toilet if there is a water trap？

Yes, you can install it, but it is not recommended. When there is a water trap and you choose to install a siphon toilet, it may lead to decreased flushing efficiency, resulting in insufficient water flow. Over time, the drainage pipe of the toilet may become easily clogged, affecting the normal use for the user.

What details should you pay attention to when purchasing a toilet？

1、Whether the toilet pipe is prone to clogging is generally determined by the pipe design. If you have a direct flush toilet, its design usually does not include a water trap, allowing waste to be flushed away directly, which generally does not lead to clogging during flushing. If you have a siphon toilet, its pipe design typically includes a water trap, and its flushing efficiency is generally strong, making it less prone to clogs.

2、When selecting a toilet, you may want to touch the pipe at the bottom of the toilet to see if it has undergone glazing treatment. If the pipe surface is not glazed, the inner wall of the pipe is likely to accumulate dirt, emit odors, and be prone to clogging.

3、When purchasing a toilet, check the position of the water seal on the inner wall of the toilet. Generally, the position of the water seal should be maintained at about 50 mm. If it's a high-quality product, it is usually maintained between 55 to 60 mm, which helps prevent wastewater from splashing out during flushing. Also, pay attention to the slope of the inner wall of the toilet; generally, a larger slope results in a smaller water seal, making it less likely for wastewater to splash out.

summary：The above content covers whether you can install a siphon toilet when there is a water trap and what details to pay attention to when selecting a toilet. I hope this helps those in need. If you want to learn more related knowledge, please continue to follow our Hawkrown.