Hello,
In the Fall, a young man's fancy turns to pool equipment...
I am really getting tired of constantly dosing this pool with acid. Am considering an injection system. I would prefer it to be an "open loop" deal where I monitor the PH myself and adjust the amount of feed accordingly....because I do not trust PH sensors. I have two handheld PH meters - a cheap one and a more expensive one - and they both require babysitting and hand holding to work.
Starting the search - I see Hayward makes one and Pentair makes one. Stenner also makes one - and I think they make the actual pumps for everybody else.
Pentair's unit seems to be intelligent - and it requires intelligent connections to a larger Pentair system.
Hayward's acid injector OTOH is stupid. I like stupid. It has a power cord. As long as the power cord is powered, it pumps.
I would need some sort of very simple controller to pulse the output to the pump. With, say, a knob marked 0-100. At "50" it would
let the pump run for say 5 minutes, and then leave it off for 5 minutes. That would be simple enough to do with a 555 timer chip driving
a 110V relay. Or I could get fancy and use a small microprocessor.
This is starting to seem a little urgent because my CH has risen to 500, and I need to control the PH more tightly or risk scaling, at least until I get up the gumption to do a partial water change.
In the Fall, a young man's fancy turns to pool equipment...
I am really getting tired of constantly dosing this pool with acid. Am considering an injection system. I would prefer it to be an "open loop" deal where I monitor the PH myself and adjust the amount of feed accordingly....because I do not trust PH sensors. I have two handheld PH meters - a cheap one and a more expensive one - and they both require babysitting and hand holding to work.
Starting the search - I see Hayward makes one and Pentair makes one. Stenner also makes one - and I think they make the actual pumps for everybody else.
Pentair's unit seems to be intelligent - and it requires intelligent connections to a larger Pentair system.
Hayward's acid injector OTOH is stupid. I like stupid. It has a power cord. As long as the power cord is powered, it pumps.
I would need some sort of very simple controller to pulse the output to the pump. With, say, a knob marked 0-100. At "50" it would
let the pump run for say 5 minutes, and then leave it off for 5 minutes. That would be simple enough to do with a 555 timer chip driving
a 110V relay. Or I could get fancy and use a small microprocessor.
This is starting to seem a little urgent because my CH has risen to 500, and I need to control the PH more tightly or risk scaling, at least until I get up the gumption to do a partial water change.