You just have to pick what you want to risk. If you are not on the beach or in the bottom of a valley where the water table is high, it’s probably fine to drain. You can try digging a hole and see how far you can get without water seeping into the hole. There’s also surveys you can probably review to better understand the risk.
I was going to call the South Florida water district on Monday. I live 1/4 mile from a beach. My water has little to no iron.You just have to pick what you want to risk. If you are not on the beach or in the bottom of a valley where the water table is high, it’s probably fine to drain. You can try digging a hole and see how far you can get without water seeping into the hole. There’s also surveys you can probably review to better understand the risk.
Or if you follow the no drain exchange details it helps to reduce the water waste. Of course make sure you’re not refilling with iron saturated water.
Fat hose. 1.5 inch. A 3/4 inch garden hose would limit what the pump was capable of. Which, for a no drain exchange, may be a good thing.
Search for 100 ft 1.5inch discharge hose and plenty will come up.
Thank you. Yes I am going to try the no drain way. The formula involving temperature and dissolved solute in pool vs supply confuses me but my gut tells me its not critical. Sorry but I can't open your links for some reaon.Search for 100 ft 1.5inch discharge hose and plenty will come up.
This one even comes with an appropriate fire hose nozzle.
If you're no drain water exchanging, a standard garden hose would be best, and standard issue Shut off valve would allow more flow than a typical hose nozzle, but also allow you to reduce the flow if needed
So a plain garden hose can attach to these pumps. I don't need a special hose as mentioned?!
Correct. The bigger hose would be to save time when you weren't trying to match the pressure from the house. Like draining after a big storm, or to repair the plaster.
It is critical. But the good news is that while it looks like rocket science, it's pretty simple if you plug the values in were it says.
Sorry we missed your questions above. Sometimes a thread falls between the cracks while all the helpers are having dinner or picking up the kids from 17 bazillion after-school activities.
Thank you for the edit and the answer. I plan on doing as soon as chemistry allows. Just last week I spoke to my pool service and they dropped pH from 8.2 to 7.5 and now already its up to 8.2 again. Also I have been running SWG at 25% for 12 hours day and I stopped for 2.5 days and Cl came out high. I asked service not to add any but I wonder if they are. Bottom line I am prepared to run pump and hose x 3 days but with delta being so low and water mixture high....how can I be confident iron is flushed out? BTW I can add water through 2 hoses!
Oh I will. I accidently ordered received 2 sump pumps from Amazon last week (see post 131). One with shut off the other without. But since I wont be draining the pool I would imagine I could use either. Should I just return the one with shut off because it has more moving parts? Also since I am using an external pump, all the stuff about removing filter goes by the wasteside right? Or do I remove filter just to allow my pool pump to mix things for a while?
It may come in handy down the road if you want to pump something but not babysit it.
Yes. Shut the pump off with the breaker so the timer/automation doesn't accidentally kick back on. If you stir up the pool mid exchange, the rest of the exchange will remove new water with the old.
For the no drain exchange you want as little mixing as possible. Some will happen no matter what.