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Thank you for your advice. Pool store guess strip shows 0 copper so I will let it go. Lesson learned, stress ‘no chemicals’ to the pool service every time they arrive to open/close. They won’t remember otherwise.

- Should I pump out and replace remaining water? - Does it matter that pump/filter have been disconnected in terms of rebalancing water? - Is 1 gallon of Algaecide enough to do damage in a 35,000 gallon pool 1/3 full? My concerns are staining and the disire to avoid ongoing use of sequestrant.

A service came to close our pool today. Despite requesting no chemicals, after pumping down the water they added Algaecide with Copper and Sequestrant. I had already added 1/2 gallon of Polyquat 60. What should I do? Pool has already been winterized and cover is on.

Regarding drainage, our town required engineering surveys, reports and inspections to ensure/confirm no groundwater impacts neighbors, septic, wetlands etc. We had to include multiple yard drains to a rain garden, but none in the area where we had the problem. Luckily it was easy to find/solve...

Additional thoughts and input (sorry if it's too much or too random): - Our pool builder had his own excavator (his brother-in-law). - He builds both pools and basements so maybe try calling people who dig/pour basements and see if they have pool experience. - In our town, the pool plumbing...

Pictures of my pool in grass. https://m.imgur.com/a/agkUl2W

https://m.imgur.com/a/agkUl2W

We built our rectangle pool in grass a few years age on CT. The builder we hired usually works for well known local pool companies. Most aspects of the project were clearly in his wheelhouse but others were not and that probably had minor impact on our final product. That said, we paid half...

Thank you for the feedback. I clean the filter.

The lawn by my pool was fertilized today and some white (and a few black) granules ended up in my pool (maybe 1 Tablespoon). We manually vacuumed them up. Do I need to clean my filter if there is a bit fertilizer in it? Most of the material landed on the solar cover which is due for...

We built our pool in CT three years ago. Some thoughts I have for you: 1. Fence the pool rather than have it accessible to the house. You will become desensitized to the door alarm going off every time kids go in/out. It’s so important to have the fence even if it’s an obstacle or not...

I assume it’s a timing issue. If it keeps rising the I will update here. Thank you for your quick feedback.

No pucks ever. TFP only and always. There is a switch on the control box for Super Chlorinate; Auto or Off. It is switched to Off. The generating indicator lights were not on today. I usually test in the AM before the pump runs. Maybe the level is different in the evening because the water...

Hello, We had some construction done in our pool area last week. Knowing I wouldn’t be able to check on the pool, I set the SWG to Superchlorinate for a few (3) days. The FC climbed to over 10 so I turned off the SWG to let the level drop. It’s been falling gradually. However, this morning...

Pool is open and nicely balanced. It will be under solar cover and cold for many weeks so I’m not focused on surface scimming and I won’t be using the SWG or heat exchanger. There are no other water features etc. With this in mind, what is an appropriate run time and speed combo for my vs...

Thank you Duraleigh. I will do that.

We’ve just replaced the water in our hot tub. I put a few ounces of CYA in a sock and started the jets. The water broke open the sock and now CYA granuals are on the bottom of hot tub. Can I just leave them there to dissolve or do I have to get them out? Will they cause damage to the...

With pool season around the corner I want to preorder water chemistry supplies. I'm planning on starting with the following for my 34,500 gallon pool based on poolmath and usage history. What/how much do you stock? Complete water test kit Bleach 10 jugs (use until water is warm enough for...

Thank you. I will try aeration.

Texas Splash, thanks for the advice. I have a bottle of pH up that my hubby had been using. Do you know if pH up would raise my TA more than Borax for the same amount increase in pH?

I've been successfully using TFPC since opening my 1 year old pool. Now it's time to fix the water in my husband's hot tub. The water is being drained as I type. The source will be well water that has been treated for drinking. I know how to adjust FC, CH, CYA and Borates but how do you...

Thanks! I can work with this.

To protect my 1yr old pool, I want to keep my CSI in a healthy place. To do that it seem my pH and TA need to be at their upper limit. However, I was under the impression that I should keep the pH and TA on the lower end of the recommended range for a SWG. As the weather gets warmer (and the...

Water is clear. FC was 5.6 at 6am. Looking good - feeling good.

Thank you tim5055. I will add some bleach and more stabilizer if the CYA doesn't go up over the next few days after yesterday's addition has circulated a few times.

I have been working the past week to balance the water in our new pool. At this point I think I need to increase FC and keep working the pH and TA with muriatic acid and aeration, but I am getting a bit skittish. Could someone please review my test results and corresponding actions (see below)...

Thanks! I will get that taken care of.

Thank you all. Mystery solved and no need to add a valve.

Here is a close up. Is that copper? brass? thing related to bonding/grounding? A green wire runs from the grass to the pump/motor to the sacrificial zinc anode then to this mystery part then to the heat pump.