[quote="果汁先生"]Do not make thing complicated!
Please see attached.
1. refer to your fluck tank,
2. 2 cycles/hour x totat volume of your tank,
3. change the filter frequently,
4. Sorry, no answer. I know nothing about UV.

[/ quote]
"果汁先生",
First of all, thanks for yr comments. But what did u mean by "your fluck tank"?! Did u mean "fuxk"? If so, fuxk u too!!
Also, refer to yr "fluck tank", how could it clean up the dirts at the bottom of the tanks?? Do u mean that u will suck those dirts by hand again? Then what is the point to construct such
auto system in the first place??
What a very simple but useless set-up! Just like those cars in Flinstone movie: very simple cars but without any engine and need yr bare legs to mobilise them!!
What a pity that u think u r smart but indeed it's clear it is just the opposite!
Absolutely right not to make things complicated. But equally important, simplicity without proper function means nothing !!