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Hello I had my water tested a few years ago by Cuno a service provided by my local supply house and the results were High Turbidity, moderately Hard, and trace iron. they recommended the AP815-2 to go into my AP802 whole house filter. I used this for a few seasons but that cartridge was getting expensive about $80 so I found this site and have used the SDC -45-2020 since, this filter seems to have performed fine it is very dirty when I change it. Now I am wondering if there is a better choice (without spending $80 each) that would help with lime scale deposits/buildup. I just had an issue with my Rinnai on demand water heater caused by lime scale buildup in a flow sensor/servo. Now I know that flushing my hot water heater is part of the maintenance and I just found a new plumber that can take care of that. I read in another post about a filter with phosphate would that help in my situation? Also in regard to microns what # corresponds to smaller particles? The smaller # traps smaller particles? Thanks in advance for any reply's. CLB
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The SDC-45-2020 filter that you are using is a 20-micron filter. Below are 3 other filters that would be better filters and filter 10, 5, and 1 microns. They filter a smaller particle so you may notice thefilters needing to be changed sooner.
The smaller the micron rating, the smaller the particle size it filters. I would recommend getting a couple of the 10 and the 5 microns and see how they filter and how long they last.
SDC-45-2010
SDC-45-2005
SDC-45-2001
The phosphate creates a barrier and prevents scale build-up on the inside of your water heater and pipes. It will not remove any already created deposits of scale.
10"x2.5" Phosphate cartridge.
This should be installed before the water is heated. -
Alex Hi, thanks for the info I really appreciate it. ChrisComment
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So it looks like the phosphate filters are not for whole house applications due to the low flow rates.Comment
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