Several Tears In The Filter Panels Of My DE Filter..Loss Of Suction..
by Felipe
I know I'm not overloading the unit with powder.(4 lb. for a 35 sq ft filter). Any ideas as to what's wrong? Thanks for the question Felipe I know from personal experience that DE pool filters are the best at cleaning the water, but they can be the most troublesome. This is what I've found while maintaining DE pools in Arizona. I will assume because your grids are new that there are no tears or rips. First thing is to check the gauge to make sure it still works. Turn off the system and if the gauge still reads 30 - 40psi, replace it with a new one. Next, be sure the grids are placed correctly, not backwards. If you get DE on the wrong side of the grids, it will cause a high pressure. Also, and I'm sure you are but some people don't use them, use an actual DE scoop, not a coffee can. A DE scoop will give you the most accurate reading on the DE powder. I always measured DE the same way I measure flour. Get a coffee can and scoop DE into it, then take the DE in the can and gently pour it into the DE scoop. This will give you the most accurate measurement for the DE powder. It's a little more time consuming but it's worth it. I never had an issue when doing this. Some people might "jam and pack" the DE into the can or scoop which is not the right method. You're using too much DE when you do this and over time it will clog up the grids. Here are some sites that I still use when I need some info. You're never too old to learn new things: http://www.pentairpool.com/pdfs/SMBW4000SeriesFilterOM.pdf http://www.pentairpool.com/pdfs/FNSPlusOM.pdf http://www.pentairpool.com/pdfs/SMBW4000SeriesFilterOM.pdf http://www.pentairpool.com/pool-pro/subsections/filters-de-24.htm www.troubleshooters.com/pool/de_filter_cleaning.htm www.mypool.com/Help_Files/Parts_Diagrams/PacFabFNS.htm And this page from my site: Assembly Of Vertical DE Filter Grids - What A Pain! Hope this helps and good luck with your filter Robert Average Rating Nov 16, 2010 DE Filter Pressure Down To 18 - 20psi... NEW By: Felipe Man, what a wealth of information. Thank you very much. However, I wonder how the grids could bhave been installed backwards. Do you mean that maybe I have them in the wrong order? This afternoon, I backwashed the filter for a couple of seconds and got the pressure down to 18 PSI. I added a coffee can of de powder and the pressure seems to be holding between 18 to 20 PSI. Again, thanks for your help. Thanks for the follow up. Always glad to help. Good luck with the filter and if you have any pics. you'd like to send I'd like to see them. I'm also running a swimming pool article writing contest and the winner will receive a new Taylor DPD K-2006 pool test kit, the best one on the market. You can go here for more info. Swimming Pool Article Contest You can write about your DE filter issue and how it was solved. Best of everything Robert |
