Newbie looking for feedback

[Reef Pilot]

Originally Posted by SeaHorse_Fanatic

Sidius,

If your ATO float switch failed in the "open" position, wouldn't it keep pumping water from the 29g and then the float switch in the ATO reservoir would refill, so you'd overflow your display/sump and drop the salinity? Also, if the float switch in the reservoir fails, you have freshwater all over your main floor. Neither scenario would please your wife or you.

I really like Reef Pilot's setup for failsafe, foolproof ATO system, cause having it timed (5 min every 6 hours) will really minimize any excessive RODI water dumpage, either into the display/sump or your floors.
Anthony

With my set up, both the solenoid (in the open position) and the float valve would have to fail before I could have an overflow. While theoretically possible, the mathematical probability of that is very, very minuscule. Especially, since the solenoid is spring loaded to close, and needs power to open. The much more likely failure is for the solenoid failing to open, which of course can't produce a flood.

[Reef Pilot]

Originally Posted by Reef Pilot

With my set up, both the solenoid (in the open position) and the float valve would have to fail before I could have an overflow. While theoretically possible, the mathematical probability of that is very, very minuscule. Especially, since the solenoid is spring loaded to close, and needs power to open. The much more likely failure is for the solenoid failing to open, which of course can't produce a flood.

And if you wanted to get really silly anal, you could have a double solenoid system, so if one does stay open the other one would still close the line. But then you would double the chance of a closed failure (much more probable).

These are not airliner systems where life (human that is) is at risk, so we have to be reasonable/practical with the cost of our risk mitigation.

[Aquattro]

Originally Posted by Reef Pilot

With my set up, both the solenoid (in the open position) and the float valve would have to fail before I could have an overflow. While theoretically possible, the mathematical probability of that is very, very minuscule. Especially, since the solenoid is spring loaded to close, and needs power to open. The much more likely failure is for the solenoid failing to open, which of course can't produce a flood.

I have the same setup. Has worked for 6 years without issue, other than solenoid failing closed about year 4, so simply replaced it.