I have gone through three "bum guns" (the bidet-like feature in most Thai bathrooms with a toilet) looking for one that does not consistently leak. Yes, I did take it apart and use plumbers tape on the threads. It does not seem to leak from the threads, but from the hose to body construction.
We have good water pressure here and one of the bum guns did break after I used plumbers tape. So that one was made pretty cheap. My latest one is stainless steel and was expensive... leaks!
The floor is always wet, which is OK in a Thai bathroom, they are made to be wet. I personally do not like it and I do not want anything just leaking for no reason.
Would love to know if someone has a recommended bum gun or maybe a different approach. Thank you!