Whole house filter to pair with 5810?

[Sdsvtdriver]

Any new whole house filters that can offer flow rates comparable to 36 GPM the 5810 will sustain? The only option I've seen is "Big blue", but I recall the flow rate was roughly half.

On city water, but getting quite a bit of red colored deposits in the shower and toilets as of late, so tossing around ideas.

 

[Reach4]

There is a trade off of pressure drop vs flow.
http://waterpurification.pentair.co...nload/en/310053-pentek-bigblue-rev-e-my16.pdf see the graph at the end.

But those drops are just for the housing. The elements/cartridges will have their own drops. http://waterpurification.pentair.com/Files/KnowledgeBase/ItemDownload/en/247670-pentek-wpx-bbseries-rev-b-my15.pdf says <8 psi @ 65 gpm "" for a WPX100BB20P cartridge.
http://waterpurification.pentair.co.../en/247662-pentek-wp-bb-series-rev-b-my15.pdf
I use their DGD filters: http://waterpurification.pentair.co...oad/en/310061-pentek-dgdseries-rev-d-my15.pdf They have their gpm numbers at 1 psi drop.


The flow rate of any filter can be doubled by putting 2 in parallel. If you put valves on both sides of each, you could keep one in service while changing the other. I am thinking that you should get a year or more on a filter cartridge with city water.

Take a look at the diagnostics for your softner. One of the numbers is PF. "Peak Flow Rate Displays the highest flow rate measured since last regeneration."

The number you see there will probably be much lower than you suspect. I would bet under 10.

 

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[Sdsvtdriver]

There is a trade off of pressure drop vs flow.
http://waterpurification.pentair.co...nload/en/310053-pentek-bigblue-rev-e-my16.pdf see the graph at the end.

But those drops are just for the housing. The elements/cartridges will have their own drops. http://waterpurification.pentair.com/Files/KnowledgeBase/ItemDownload/en/247670-pentek-wpx-bbseries-rev-b-my15.pdf says <8 psi @ 65 gpm "" for a WPX100BB20P cartridge.
http://waterpurification.pentair.co.../en/247662-pentek-wp-bb-series-rev-b-my15.pdf
I use their DGD filters: http://waterpurification.pentair.co...oad/en/310061-pentek-dgdseries-rev-d-my15.pdf They have their gpm numbers at 1 psi drop.


The flow rate of any filter can be doubled by putting 2 in parallel. If you put valves on both sides of each, you could keep one in service while changing the other. I am thinking that you should get a year or more on a filter cartridge with city water.

Take a look at the diagnostics for your softner. One of the numbers is PF. "Peak Flow Rate Displays the highest flow rate measured since last regeneration."

The number you see there will probably be much lower than you suspect. I would bet under 10.

peak flow is 13.4.

 

[ditttohead]

The 5810 valve has a high flow rate, the systems as a whole do not have anywhere near that rating. That is a valve only number. Once you add the tank, media, fittingets. the flow is greatly decreased. Please see the attached link, this will give a you a general idea of what to expect.

As to what filter to add, do you have more information on your water conditions? A simple sediment filter will help, a high quality pleated tends to give the best flow rate, string or melt blown will also give you surprisingly high flow rates. Most of these will exceed the flow rate of the softener until they start to load up.
https://view.publitas.com/impact-water-products/2018-catalog-final/page/44-45

Here is a link to the pleated USA made filters. We sell imported (Chinese) as well but the lack of quality and consistency has not been worth the tiny cost savings.
https://view.publitas.com/impact-water-products/2018-catalog-final/page/210-211
https://view.publitas.com/impact-water-products/2018-catalog-final/page/208-209 shows the USA melt Blown filters, if you notice the flow rate vs pressure drop is impressive, even at the high end f flow they have a very low pressure drop. <.25 PSI drop for the 4.5"x20" at 5 GPM. Even at 20+ GPM their drop is typically less than a single PSI.