Cleaning (or replacing) flex tubes in a Hayward DE Filter

[phonedave]

I normally break down and fully clean my EC-40 each fall, storing it for use in the spring. My normal process is to soak my tube sheet assembly in a bucket full of water and Oxy Clean overnight, and then hose it off. They usually come out bright white.

This year they are staying dirty grey / brown.

A number of questions
- They look clear, just discolored. Am I overthinking things.
- Will an acid wash help (if so, what is the recommended strength). As an aside, this is the first time in 5 years I have had any significant scaling in my salt cell, necessitating an acid soak. Maybe something is up with my pool. It is a new pool this year.
- If I do replace these, do they make just the "socks" for the tubes, and not the whole tube assembly (sock with inner plastic tube). My plastic tubes are just fine, I would like to just replace the socks on them. (because the tubes are not cheap)

Thanks

 

[ajw22]

Your water quality may have changed.

The Montville Water Quality Report - http://montvillenj.org/DocumentCenter/View/762/Water-Quality-Report- - says:

Water for the Montville Township Water System is derived from the Township’s two (2) Indian Lane well facilities. We have three (3) wells that draw their water from glacial sand and gravel aquifer systems. Approximately 90% of our drinking water is derived from the Township’s Indian Lane Wells. In times of peak demand, we purchase water from the Jersey City Veolia reservoir via pumping facilities located on River Road, and from the Passaic Valley Water Commission (PVWC) and the North Jersey District Water Supply Commission (NJDWSC) via the Lincoln Park Water System.

I get my water from Veolia Water (that used to be Suez Water, that used to be Hackensack Water Company) reservoirs and in the last year found my water has very different chemistry. For many years it was hard water with CH in the 450 range. I never needed to add CH to my pool. I was surprised when my pool CH tested around 150 and I went digging. I tested my tap water and found it was very low CH water now. Somewhere in the last few years as Veoila Water took over the water system they have mode investments in water treatment that changed the water chemistry. The water also tastes very different now.

So the local water you have been used to for years may have changed. Lots have changed with NJ water supplies, mostly for the better.

You also don't know if when you filled your pool the water at that time was coming from the three Township wells, Veolia Water, PVWC, NJDWSC, or some mix of them.

 

[phonedave]

Your water quality may have changed.

The Montville Water Quality Report - http://montvillenj.org/DocumentCenter/View/762/Water-Quality-Report- - says:

Water for the Montville Township Water System is derived from the Township’s two (2) Indian Lane well facilities. We have three (3) wells that draw their water from glacial sand and gravel aquifer systems. Approximately 90% of our drinking water is derived from the Township’s Indian Lane Wells. In times of peak demand, we purchase water from the Jersey City Veolia reservoir via pumping facilities located on River Road, and from the Passaic Valley Water Commission (PVWC) and the North Jersey District Water Supply Commission (NJDWSC) via the Lincoln Park Water System.

I get my water from Veolia Water (that used to be Suez Water, that used to be Hackensack Water Company) reservoirs and in the last year found my water has very different chemistry. For many years it was hard water with CH in the 450 range. I never needed to add CH to my pool. I was surprised when my pool CH tested around 150 and I went digging. I tested my tap water and found it was very low CH water now. Somewhere in the last few years as Veoila Water took over the water system they have mode investments in water treatment that changed the water chemistry. The water also tastes very different now.

So the local water you have been used to for years may have changed. Lots have changed with NJ water supplies, mostly for the better.

You also don't know if when you filled your pool the water at that time was coming from the three Township wells, Veolia Water, PVWC, NJDWSC, or some mix of them.

Most of the time our water comes from our township wells. When they do purchase water, I suspect that I get a larger percentage of the purchase water (due to where the wells are, the interconnect is, and my house is)

Regardless of that, if anything the CH in the water should have gone down, but I have scaling in my SWCG for the first time ever. We have always had very hard water here.

 

[PoolStored]

I have scaling in my SWCG for the first time ever. We have always had very hard water here.

Turn on TRACK CSI and TRACK TEMPERATURE in pool math.
Run a full set of tests and enter into pool math along with the temperature of the pool.

Like to see your CSI...may be adjustments can be made to avoid scale...

 

[ajw22]

Turn on TRACK CSI and TRACK TEMPERATURE in pool math.
Run a full set of tests and enter into pool math along with the temperature of the pool.

Like to see your CSI...may be adjustments can be made to avoid scale...

It is too late in the season in NJ for that now. Dave should begin doing that next season.

 

[PoolStored]

It is too late in the season in NJ for that now. Dave should begin doing that next season.

I get that, but if he enables CSI and Temp now, with a full set of results, we can see what his chemistry would be like with higher pool temps...and make recommendations for next year...

 

[ajw22]

I get that, but if he enables CSI and Temp now, with a full set of results, we can see what his chemistry would be like with higher pool temps...and make recommendations for next year...

Using Dave's chemistry in his PM logs his CSI is fine ...

 

[ajw22]

Looking at the PM logs in prior years you had low TA low CH water and this year your water was high TA high CH. Unless you did things to adjust the chemicals the water quality changed with the refill.

 

[phonedave]

Looking at the PM logs in prior years you had low TA low CH water and this year your water was high TA high CH. Unless you did things to adjust the chemicals the water quality changed with the refill.

I don't doubt that it changed with the refill. My water was around 7 years "old" before I changed it. I change about 10% of my water each year with closing and opening. So that water that was / has been in the pool for all of these years I have been using Pool Math has been treated to get it where I wanted it. I suspect that over the years the rain has diluted my old pool water, bringing down the CH.