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07-06-2022, 06:21 PM
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#1
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2022 Dynamax Europa 31SS
Join Date: Dec 2021
Posts: 92
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Supplied whole house water filter
Has anyone noticed that the supplied water filter that came from Forest River is not the correct filter for the housing mounted in the coach? Maybe I'm missing something but what I got ain't right..... Perhaps y'all should see if your filter is actually filtering...
Wait--I see the problem--part of the filter head where the filter o-ring should seat looks broke off. Can anyone confirm that is my problem? Thanks.
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07-06-2022, 09:10 PM
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#2
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Senior Member
Join Date: May 2021
Posts: 150
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They take a goofy kw1 filter or whatever it is and is hard to come by. Seems like most people are removing that system and going remote with the filter.
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07-07-2022, 07:14 AM
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#3
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Senior Member
Join Date: Jul 2020
Location: Phoenix
Posts: 792
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What do you mean by remote with the filter?
__________________

2021 Force 37TS (Detroit DD8)
2021 Jeep Grand Cherokee Trailhawk
2020 Isata-5 36DS (traded in)
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07-07-2022, 07:20 AM
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#4
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Part-Time Campground Host
Join Date: Jul 2019
Location: Upstate NY
Posts: 3,025
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Quote:
Originally Posted by Invisibleman
What do you mean by remote with the filter?
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"Remote Filter":
__________________
Craig & Cath
2018 2902WS Rockwood Ultra Lite (with tons of Mods)
2022 F250 Lariat Super Cab, 7.3 gas w/10 Spd Xmsn
Equalizer Hitch w/4-Point Sway Control

Days camped since 2015(retirement): 1513
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07-07-2022, 07:29 AM
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#5
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Senior Member
Join Date: Nov 2019
Location: Littleton, Colorado
Posts: 234
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I changed my onboard filter housing with one that takes common filters you can purchase from Home Depot and Amazon. Those filters are much less expensive. Plus, I use a filter on my hose when I fill the tank.
__________________
2021 Isata 5, 34DS
Colorado
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07-07-2022, 11:15 AM
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#6
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Senior Member
Join Date: Jul 2020
Location: Phoenix
Posts: 792
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Ah yes. I use a "remote filter" when I am hooked up and for filing the tank. But I've always thought the canister filter would add more filtration. But I never did find activated carbon filters I wanted for the, yes, slightly uncommon cannister on on my Force which uses a KW1 filter. Changing the canister base sounds like a great idea. It's on my to-do list. Thanks
__________________

2021 Force 37TS (Detroit DD8)
2021 Jeep Grand Cherokee Trailhawk
2020 Isata-5 36DS (traded in)
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07-07-2022, 11:42 AM
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#7
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2022 Dynamax Europa 31SS
Join Date: Dec 2021
Posts: 92
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My first project was cleaning up the "wet bay" and included removal of the Sanicon, removal of the whole house filter, adding a dual filter that filters the water BEFORE entering the coach, and adding a water softener. The whole house filter that came with the coach was mounted in such a way that it pressed on the door, was attached with one screw, and here is the weird part, and I could be wrong about this, but the filter was plumbed in such a way that it only filtered water coming out of the pump. Water did not pass through the filter when set to "city" fill. Again, I could be wrong about this but the output line from the pump ran directly to the filter meaning that when the panel is set to "close" (city fill--like when hooked up to campground water), the water is not filtered.
Perhaps someone can correct me on this but I don't know why the filter is not plumbed directly prior to the city water connection. That's what I've got now--water is filtered and softened before entering the coach.
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07-07-2022, 12:09 PM
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#8
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Senior Member
Join Date: Jul 2020
Location: Phoenix
Posts: 792
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Did you use one of the type softeners that you set on the ground each time you setup, or a more compact type that stays in the wet bay?
__________________

2021 Force 37TS (Detroit DD8)
2021 Jeep Grand Cherokee Trailhawk
2020 Isata-5 36DS (traded in)
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07-07-2022, 12:53 PM
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#9
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2022 Dynamax Europa 31SS
Join Date: Dec 2021
Posts: 92
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The unit I purchased fits in the water bay. The filters and softener are all connected with several quick disconnects/shutoffs for easy service.
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07-08-2022, 06:03 AM
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#10
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Senior Member
Join Date: Mar 2019
Location: Family room couch
Posts: 4,234
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Quote:
Originally Posted by M_I_A
... and I could be wrong about this, but the filter was plumbed in such a way that it only filtered water coming out of the pump. Water did not pass through the filter when set to "city" fill. Again, I could be wrong about this but the output line from the pump ran directly to the filter meaning that when the panel is set to "close" (city fill--like when hooked up to campground water), the water is not filtered.
Perhaps someone can correct me on this but I don't know why the filter is not plumbed directly prior to the city water connection. That's what I've got now--water is filtered and softened before entering the coach.
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On our Georgetown, the onboard water filter filters all water going to the inside plumbing.
City Water is plumbed to the output side of the water pump, then the filter, then the interior.
So yes, City Water is filtered. So is water coming out of the fresh tank.
But the Fresh Tank Fill is not. That may be to keep some level of chlorine in the water in the fresh tank since it tends to sit in there for a lot of people. But that also lets sand and dirt from a campground water system get into the fresh tank, if any.
That's why I use an inline hose filter as well. To help keep the onboard filter cleaner and to keep garf out of the fresh tank. When filling the tank I just pour a capful of bleach into the hose after the inline filter. That helps keep the fresh tank chlorinated and any chlorine will later be removed by the onboard filter.
Make sense?
BTW, the onboard KW1 filter is 5 microns but almost all inline hose filters are only 20 microns or worse.
Ray
__________________
2020 Georgetown GT5 34H5
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07-08-2022, 10:33 AM
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#11
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jkoenig24
Join Date: Apr 2015
Location: Box Elder, SD (formerly NY)
Posts: 953
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My 2015 DX3-37RB came with a PROPRIETARY whole house filter. I could NOT locate replacement filter cartridges anywhere and apparently, would have to get them directly from Dynamax (if in fact Dynamax would sell them). I had the housing changed to a STANDARD unit and have since been able to easily purchase replacement filters in a variety of filtration levels.
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07-08-2022, 02:53 PM
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#12
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Senior Member
Join Date: Oct 2018
Posts: 1,179
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KW1 filters are not hard to find. Here’s a link to buy all you want:
https://www.discountfilters.com/search.php?keywords=kw1
We use a 2-stage external filter system from the RV Filter Store. A sediment filter goes first then the charcoal activated filter. We love it and our water and ice taste great.
https://www.rvwaterfilterstore.com/
__________________
Joe & Cynthia
2021 Dynaquest XL 3801 TS Cindy 'B'
2021 Jeep Wrangler Unlimited Rubicon Diesel
“Breathe in, Breathe out, Move on”
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07-08-2022, 08:09 PM
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#13
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Senior Member
Join Date: May 2021
Posts: 150
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Maybe we mis-quoted "hard to find" but the KW1 certainly isn't a commonplace filter. There are better options that aren't unobtanium.
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07-08-2022, 08:50 PM
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#14
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Senior Member
Join Date: Oct 2018
Posts: 1,179
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Guess I’m missing something, they seem pretty obtainium to me. Here’s the Amazon page with 2 KW1’s for $39.95.
__________________
Joe & Cynthia
2021 Dynaquest XL 3801 TS Cindy 'B'
2021 Jeep Wrangler Unlimited Rubicon Diesel
“Breathe in, Breathe out, Move on”
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07-11-2022, 06:48 AM
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#15
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Senior Member
Join Date: Mar 2015
Location: Akron, OH
Posts: 3,231
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I bought those same ones on Amazon, work just fine.
__________________
2023 Dynaquest XL 3700BD
Had...2018 Force HD, 2016 Force, 2014 Thor 33sw
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07-11-2022, 07:14 AM
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#16
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Senior Member
Join Date: Sep 2020
Posts: 575
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Quote:
Originally Posted by whitexc
Maybe we mis-quoted "hard to find" but the KW1 certainly isn't a commonplace filter. There are better options that aren't unobtanium.
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Exactly, can't just stop into any hardware or home improvement store and grab one.
I keep spares in the coach though, got em on amazon.
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07-14-2022, 11:10 AM
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#17
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MSgt & MSgt, USAF Retired
Join Date: Apr 2019
Location: Choctaw, Oklahoma
Posts: 200
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Quote:
Originally Posted by M_I_A
My first project was cleaning up the "wet bay" and included removal of the Sanicon, removal of the whole house filter, adding a dual filter that filters the water BEFORE entering the coach, and adding a water softener. The whole house filter that came with the coach was mounted in such a way that it pressed on the door, was attached with one screw, and here is the weird part, and I could be wrong about this, but the filter was plumbed in such a way that it only filtered water coming out of the pump. Water did not pass through the filter when set to "city" fill. Again, I could be wrong about this but the output line from the pump ran directly to the filter meaning that when the panel is set to "close" (city fill--like when hooked up to campground water), the water is not filtered.
Perhaps someone can correct me on this but I don't know why the filter is not plumbed directly prior to the city water connection. That's what I've got now--water is filtered and softened before entering the coach.
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I concur with your findings here. On our ISATA 5 the filter was only in use when using the water pump. I removed it since I filter when filling or connected to city supplies.
__________________
Chris and Joyce
2022 DX3 37RB 'Destiny'
2015 Rubicon
2020 Ultra CVO
Traded in 2020 ISATA 5 36DS
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07-14-2022, 03:19 PM
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#18
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Senior Member
Join Date: Mar 2015
Location: N. Illinois
Posts: 2,361
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Can't exactly say how long I've used this setup. Whole house canister w/shutoff, taste,odor sediment cartridge 10 micron and a pair of ght fittings X 3/4 npt. Maybe I go through 2 filters a season $. A 10 ' hose on either side of it
__________________
2016 Flagstaff 27VRL Emerald
14K Equalizer
2020 Silverado 2500HD CC 4X4 6.6L gas 3.73
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07-15-2022, 06:35 AM
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#19
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Senior Member
Join Date: May 2014
Location: Top of a hill (in Iowa) surrounded by corn.
Posts: 612
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Quote:
Originally Posted by Phreak480
Exactly, can't just stop into any hardware or home improvement store and grab one.
I keep spares in the coach though, got em on amazon.
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So having enough to keep 2 years of spares in the coach is hard to get?
While I don't like Amazon, they're /usually/ pretty fast with shipping too.
Sorry, couldn't resist.
Jim
__________________
2021 Dynamax Dynaquest XL 3400KD
2022 Aluma 8220H Tilt flatbed to carry:
2012 Jeep JKU Rubicon or slightly modded 2001 Jeep TJ
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07-18-2022, 06:22 PM
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#20
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Member
Join Date: Jun 2020
Location: Edgewater, FL
Posts: 90
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We dont use that one. It's to dang muchbog a PIA to get to. We put one on the connection spigot outside.
__________________
Flagstaff 5th Wheel 529BH 36'
Ram 3500, dually, cummins
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