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I just bought a brand new head for my sand filter via Hayward. So is this defective then? when I vacuum to waste there should be no water going back through the return? ill try the siphon method as well!

I have dead algae in the bottom of my pool that I want to vacuum to waste and I just used a flock. Everything worked and the junk is at the bottom of the pool. I set my multi port valve to waste, hook up my hose and vacuum as normal. I notice that water is going out the waste line as it should...

Gotcha. is there any analogy you can make on what the return flow should feel like when the pump is on low. It does not feel like half the flow as high speed which is what I think you are eluding to. the filter has been back washed well and rinsed and my high speed flow is on par. the flow on...

So is the purpose of the low speed "just" for turning water over and not for skimming debris off the pool surface? What is the benefits/ use case for the low speed besides electric costs? i can also feel the return and can sense the flow at low speed is about 1/8 or 1/16 the return flow as...

I just "upgraded" from the Hayward single speed 1.5hp power-flo matrix to the 2-speed version of the same pump to save on energy costs by running it 24/7 on low. I have very similar psi output at high speed between the two pumps at 9 psi. Now what puzzles me is that at low speed my gauge is...

Ok, so I have adjusted the position of the "eye ball valve" and pointed it down and right (basically at 45 degree angle away from the skimmer). Now when I run the pump I can see the water on the surface of the pool moving in a whirlpool motion around the pool. It is very noticeable that the...

Currently the return jet is pointed straight down. I can adjust it as needed. Is there any pictures showing how it should be positioned? (also, if I am standing in the pool facing the jet, the skimmer is on the right of the jet return for reference.)

Kim - mine does as well, but shoots the water out so fast that I only have a few minutes of vacuum time before the water level is below the skimmer. To truly get this stuff out I have to go "super" slow which takes a lot of time when vacuuming to waste. With the siphon method I can vacuum for...

I've not "perfected" my vacuum techinque yet, but do go slow. With this stuff it just seems that it is that super fine stuff that no matter how slow you go just clouds up and over the past few months has built up to be an insane amount. There is a fine layer about 1/16 in thick across the...

I can vacuum to waste, but only for about 2 minutes max before the water is below the skimmer. Should I fill the pool completely before vacuuming to waste to get a bit more time? - - - Updated - - - When I look at the return as I am vacuuming I do not see any of the junk come back out through...

This is true! I can keep all results in balance with what they should be, I just can't for the life of me get stuff out of the pool. This is dirt or something and vacuuming does nothing but stir it up.

Here are the results. FC: 3 CC: 0 TC: 3 CH: 75ppm TA: 100 CYA: 10 I can tell there is no algae because the pool water is crystal clear until I vacuum plus my FC does not drop from day to day. My problem is just getting the stuff out of the pool and how "not" to stir it up. Any slight movements...

FC for the OCLT (evening) portion is right at 3. I'll get the other reading in the morning and do a full test and post those in the AM as well.

TS Yes - noticed my signature was out dated after I posted. I've updated it with my current pump. I'll get exact results in the morning and post. - - - Updated - - - Pabeader - what exactly is the DE you are speaking of and how does one do this process? If I do the DE then will vacuuming...

I completed a successful slam just about 6 months ago and know there is no "live" algae in the pool. I have not been able to get the residual junk out of the pool all season. Steps I take: 1. Vacuum ever 3 days or so. 2. Brush every 3 days after I vacuum. 3. Pump is on twice per day for (4)...

Thanks all - total palm to face moment today when I was watching YouTube videos on how to hard plum my sand filter and saw someone backwashing. When I realized it was from the waste port all the pieces connected! I knew I was backwashing, just not in the right way :brickwall:

I've just learned after having my pool for 2 seasons (years) that when backwashing, you do so through the waste port. I do not have mine plumed and guess I've been backwashing straight back into the pool. I leave the waste cap on the filter all the time as I've never vacuumed to waste. I had no...

Mikemod. You are in the same spot as me, I'm just about a month further along than you in the process. I slammed and slammed as well and killed the algae, but just can't get the dead algae out of the pool, so it's clean, just milky all the time. The thing I can't figure out from postings on this...

I did order the extra so I'm all stocked up. SLAM Day 5 8am reading (did not add anything) FC 11 6pm reading (adding 212oz to get back above 10) FC 6 My cloudiness has broke and the pool is returning to crystal. Rained very heavily all day though so will stick to the slam as needed for...

6pm reading (adding 228oz to get to 12 to stay a bit over 10) FC 3 will add less dry acid as well to get it a bit lower. The pool is 17k gallons.

SLAM Day 4 8am reading (added 103oz to get back to 12, hopefully this will hold and be at 10 when I get off work) FC: 8 I'm going to add 57oz of dry acid tonight for a PH goal of 7.2 - is that the number I should shoot for Richard?

Roger that Richard. i have some powdered PH decreaser, is that ok to use? Also will push forward with an FC of 10. I'll stick to the drops for testing at this point as well. Thanks for the continued effort!

SLAM Day 3 8am reading - added 70oz to get back to 16 FC: 13 - - - Updated - - - 6pm reading (science kit arrived so have true numbers) - adding 304oz to get to 16 FC 4 CL 10+ PH 7.8 CC 2 TC 6 TA 140 CYA 20 With this update anything I should do besides still focusing on TC? I can start to...

Noon reading - added 70 ounces of bleach to get back to 16. FC: 13 Perfect, the cloudy water has been white and gloves clear in spots fora few minutes after I put the bleach in. White seems to be a good color!

SLAM Day 2 - 8am reading (added 203oz to get back to 16) FC: 8 I notice the color of the milky haze in the water changes color directly after I add the bleach. Is this normal?

Awesome feedback guys! I'll stick with the bleach for now and push on. 8pm reading - added 78oz of bleach to get back to 16 FC: 13 TA: 180 PH: 7.6 CYA: 40 Gotta go pick up more bleach tomorrow...

4pm reading - added 101oz of bleach to get back to 16 FC: 12 TA: 180 PH: 7.6 CYA: 40 Will just be focusing on my FC at this point until that kit gets here - thanks Richard. Should I be adding any stabilizer to the mix at this point or just bleach? Checking numbers again at 8pm!

Thanks for the update guys. I'm going to take another reading at 4pm. im waiting on my TF100 water tester to ship out to me and at this point the test strips I have only test for FCI, TA, PH & CYA. Any way to test for CC with the numbers above?

Thank you all upfront for your help. I've done my homework by reading past posts and am somewhat familiar with How to SLAM at this point. Pool was cloudy yesterday and then started turning a nice shade of green. I tested and these were the results as of last night: FC: 1 TA: 180 PH: 7.6 CYA: 40...