Pump on timer for simple auto-topoff

[Chin_Lee]

i would prefer two float switch each encased inside a small 35mm film holder to prevent snails or critters from interferring with the float sensor. One set to turn on and other set to turn off at certain levels. the price would almost be the same as that of a timer and more reliable.
personnally I use the jbj autotop off and its worked well for me.

[Clown]

Used a float switch From a humidifier ( Can be bought from home-depot )
And i connected that to a purified water filter



Sorry there so large.

[Clown]

Mabey Not quite what your looking for but i only cost about 15$$ for every thing.

[Clown]

(and you could mount that in your top tank)