Auto Top Off expertise

[rmahnick]

Anyone who has expertise on sump with auto top off.
I think I need to have auto top off, where I shall install auto top off device to? I has 10 gallon sump, should put auto top off to return area? I noticed that return area has water low due to evaporate. DT has stable with water level, there no changes and also skimmer, there are same.. I think the return pump to feeding the water to level as possible. overflow is 600 gph to keep skimmer fill with water. I added about 2 gallons every 2 or 3 days.
I has black marker line for water level, on DT and Skimmer area. they are level but return area has lower every few days.

 

[jj_harrison]

You can add the water to any where in the system you want here is what I have.
It’s a light switch incased in the blue boxes with a cover. Then I screwed it to the side of my sump and drilled a hole in the end of the switch and attached an eye loop screw in the end of the switch. Then I use one of the brass toilet floats rods with a float hanging on that. I bought one of the short extension cords that you can see the two separate wire's and cut a wire to splice on the light switch. Then you plug it in and plug a power head into it from a bucket of fresh water with a hose to any where in your sump. Be careful your top off pump doesn’t create a siphon. Then you just fill the 5 gal bucket or what ever with fresh water. If I remember right all of this cost about $20 or so and I had a small power head.
The water level will rise and fall in chamber 3 where your return is.
Always use buffer when just adding fresh water