..that I personally have made.
1. wait to get an ATO right before a trip out of town. [There's a learning curve.]
2. make a lastminute adjustment to have the tank perfect [this requires turning the ATO off for a moment].
3. forgetting to plug the ATO back in before leaving for the weekend.
4. starting up an ATO with no siphon break (it just keeps going, depending on the relative height of the two water sources).
5. having (usually) the simplest kind of siphon breaks, ie, a delivery hose to the sump that doesn't ever touch the water...and letting it touch the water. FOr the next number of hours, the ATO pump would deliver enough water to the system to let it cut off. Then the fact the hose was now well into the sump water let water from the sump siphon itself back into the ATO reservoir. This siphonage gradually lowered the water level in the sump so far that the ATO pump then cut on again and delivered more water. Given a lengthy time to work, with (thank goodness not the full 30 gallons in the ATO reservoir at the time) this seesaw action equalized the salinity in the whole system---including the [supposed-to-be] freshwater ATO reservoir. Fortunately it is safer to abruptly LOWER salinity in a tank, but it's a pita raising it safely over the next number of hours.
Don't do these things! :lol: Please.
1. wait to get an ATO right before a trip out of town. [There's a learning curve.]
2. make a lastminute adjustment to have the tank perfect [this requires turning the ATO off for a moment].
3. forgetting to plug the ATO back in before leaving for the weekend.
4. starting up an ATO with no siphon break (it just keeps going, depending on the relative height of the two water sources).
5. having (usually) the simplest kind of siphon breaks, ie, a delivery hose to the sump that doesn't ever touch the water...and letting it touch the water. FOr the next number of hours, the ATO pump would deliver enough water to the system to let it cut off. Then the fact the hose was now well into the sump water let water from the sump siphon itself back into the ATO reservoir. This siphonage gradually lowered the water level in the sump so far that the ATO pump then cut on again and delivered more water. Given a lengthy time to work, with (thank goodness not the full 30 gallons in the ATO reservoir at the time) this seesaw action equalized the salinity in the whole system---including the [supposed-to-be] freshwater ATO reservoir. Fortunately it is safer to abruptly LOWER salinity in a tank, but it's a pita raising it safely over the next number of hours.
Don't do these things! :lol: Please.