Looking for a reliable plug and play ATO

[lastlight]

Originally Posted by Pescador

For another option check out Blue Line's Tsunami AT1 I've used one for 8 years literally without any maintenance. No moving parts it uses air pressure.
You should be able to find one for $60-$70
Don't use the suction cup, zip tie it to a bracket.

From their site:

>> When the water level in the sump drops 1", the AT1 will turn on the reservoir pump and turn it off after the sump fills up 1".

That could allow for some significant salinity fluctuations depending on the size of the sump/compartment the sensor is in. What I like about the Tunze is the precision.

[Pescador]

Originally Posted by lastlight

From their site:

>> When the water level in the sump drops 1", the AT1 will turn on the reservoir pump and turn it off after the sump fills up 1".

That could allow for some significant salinity fluctuations depending on the size of the sump/compartment the sensor is in. What I like about the Tunze is the precision.

It depends on your sump for sure, an inch in my sump is about 6.25g in a 330g system. I like that it doesn't cycle the RO/DI to the top up barrel too often and I still can't (knock on wood) get over how reliable it's been.

[intarsiabox]

I have no personal experience with the units but have heard good things about the ones on autotopoff.com. The tunze units are good too, the only complaints I've heard from a couple of people is that the pumps don't last very long.