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12-22-2018, 08:32 PM
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#1
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Senior Member
Freightliner Owners Club Entegra Owners Club
Join Date: Nov 2015
Location: AZ
Posts: 6,388
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Have you ever wondered what was under the wet bay floor
2018 Dutch Star 4369
Today I was continuing my quest for the perfect Sanicon install. This included installing a new access port for the Sanicon hose to exit the wet bay. I thought you may enjoy seeing how well Newmar insulates the floor below the wet bay, I’m sure the rest of the bays are similar. First layer plastic floor, second layer think felt, third layer 3/8 chip board, forth layer 1 1/4 foam and last layer galvanized steel underbelly. It’s no wonder these motorhomes are so quite and well insulated! Advantage Newmar........Stuart
__________________
Newmar 2016 Canyon Star 3710
Newmar 2018 Dutch Star 4369 SP
Newmar 2023 Dutch Star 4369 FL
Entegra 2025 Cornerstone 45D on order
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12-22-2018, 08:38 PM
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#2
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,922
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My 2014 was built like that too. I had cut a hole in the bay floor behind the Oasis unit and installed an inline bath fan to remove he hot air form the basement and electronics during the summer.
Apparently, you didn't hit any frame!
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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12-22-2018, 08:49 PM
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#3
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Senior Member
Freightliner Owners Club Entegra Owners Club
Join Date: Nov 2015
Location: AZ
Posts: 6,388
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Quote:
Originally Posted by Dutch Star Don
My 2014 was built like that too. I had cut a hole in the bay floor behind the Oasis unit and installed an inline bath fan to remove he hot air form the basement and electronics during the summer.
Apparently, you didn't hit any frame!
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Happy to report I did not hit anything that I shouldn’t have[emoji4]
__________________
Newmar 2016 Canyon Star 3710
Newmar 2018 Dutch Star 4369 SP
Newmar 2023 Dutch Star 4369 FL
Entegra 2025 Cornerstone 45D on order
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12-22-2018, 08:54 PM
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#4
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Senior Member
Join Date: Nov 2014
Posts: 2,515
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Quote:
Originally Posted by Stuart W
Happy to report I did not hit anything that I shouldn’t have[emoji4]
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Looking forward to seeing the final product!
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12-22-2018, 08:55 PM
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#5
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Oct 2014
Location: Lake McClure, CA
Posts: 1,449
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Insulated better than I thought, thanks for posting. Don't forget pictures when your done.
__________________
2018 Dutch Star 4369 Spartan Chassis
2016 Jeep Cherokee, 1952 Willys CJ3A
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12-22-2018, 08:56 PM
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#6
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Aug 2015
Location: Northwest Washington State or Western Montana, depending on the season.
Posts: 3,473
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Thanks, Stuart. I will wonder no more. And, I'll be interested in seeing the final install.
TJ
__________________
Jim (W7DHC), Diane & Mini Schnauzers, Lizzy & Ellie
2018 Mountain Aire 4047
2014 Honda CR-V 2020 Lincoln Nautilus "toad" w/AF1
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12-22-2018, 09:45 PM
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#7
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Senior Member
Join Date: Jul 2018
Posts: 2,812
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I'm impressed, didn't expect that kind of quality construction.
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Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
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12-22-2018, 09:55 PM
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#8
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Senior Member
Newmar Owners Club Tiffin Owners Club Entegra Owners Club
Join Date: Feb 2017
Location: Fulltiming Since 2011
Posts: 1,492
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Hi Stuart - I had an issue with some missing or ill formed gasket at the rear wheel well. As a result water entered the area forward of the wheels when driving in the rain. I asked Spencer what was in that floor and it appears that the OSB you noted is marine grade. Sure beats my previous coaches! Good on Newmar.
BTW -Have a holey Christmas. (Pun intended).
Tom
__________________
Tom and Annie & Java
2022 Anthem 44B
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12-22-2018, 10:03 PM
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#9
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Senior Member
Freightliner Owners Club Entegra Owners Club
Join Date: Nov 2015
Location: AZ
Posts: 6,388
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Quote:
Originally Posted by Ricci
Hi Stuart - I had an issue with some missing or ill formed gasket at the rear wheel well. As a result water entered the area forward of the wheels when driving in the rain. I asked Spencer what was in that floor and it appears that the OSB you noted is marine grade. Sure beats my previous coaches! Good on Newmar.
BTW -Have a holey Christmas. (Pun intended).
Tom
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Thanks Tom[emoji23]🤣
__________________
Newmar 2016 Canyon Star 3710
Newmar 2018 Dutch Star 4369 SP
Newmar 2023 Dutch Star 4369 FL
Entegra 2025 Cornerstone 45D on order
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12-23-2018, 09:30 AM
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#10
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Aren’t those hole saws just the greatest. So much neater than using a axe.
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12-23-2018, 10:25 AM
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#11
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Senior Member
Newmar Owners Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Nov 2016
Location: Tucson, Arizona
Posts: 1,580
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Quote:
Originally Posted by Rotten-Red
Aren’t those hole saws just the greatest. So much neater than using a axe.
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Or a sawzall.
__________________
Our Blog - Wandering Toes
Our Coach - 2005 Newmar Northern Star | 350 Cat C7 3126 | Freightliner XC Chassis
2018 Jeep Renegade Trailhawk
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02-11-2019, 08:21 AM
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#12
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Registered User
Newmar Owners Club Appalachian Campers Freightliner Owners Club
Join Date: Feb 2017
Location: Midlothian, VA
Posts: 4,774
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Quote:
Originally Posted by Stuart W
2018 Dutch Star 4369
Today I was continuing my quest for the perfect Sanicon install. This included installing a new access port for the Sanicon hose to exit the wet bay. I thought you may enjoy seeing how well Newmar insulates the floor below the wet bay, I’m sure the rest of the bays are similar. First layer plastic floor, second layer think felt, third layer 3/8 chip board, forth layer 1 1/4 foam and last layer galvanized steel underbelly. It’s no wonder these motorhomes are so quite and well insulated! Advantage Newmar........Stuart
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Stuart, thanks for sharing. I'm wanting to add a hole as well and have the parts from Newmar (white threaded top part and black sleeve bottom part). Can you share a photo of your finished product?
Any tips or warnings for venturing into this? I plan to drill at the same depth from the edge, just offset left or right depending on my sanicon pump location I'm deciding.
Did you drill bottom up or top down?
What type of hole saw did you use? I assume 5 inch is the correct diameter. I have a bit-metal saw coming tomorrow.
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02-11-2019, 09:01 AM
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#13
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Senior Member
Freightliner Owners Club Entegra Owners Club
Join Date: Nov 2015
Location: AZ
Posts: 6,388
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Neal the first thing I did was use a strong magnet from the top side to look for metal below, as it turns out the edge closest to the out side just touched the metal frame, if your staying at the same depth from the other hole you should be fine. My one concern is another member had posted a picture of a wet bay with only the frame and his showed a flat steel strap up the middle depth wise. That’s why the magnet test should be done. The side of the hole-saw was complicated the top white lid was good at 5.5 inch ( at 6 inch the screw holes didn’t all hit wood and deck to screw into)but if you measure the black sleeve near the collar it didn’t fit the 5.5 opening so I went up to 6 a 6 inch hole-saw. With what I know now I would extend the drill pilot as long as it will go then drill the 5.5 inch hole from the top if you have the room with the wet bay disassembled, only allowing the pilot to go through the bottom sheet metal, then switch to the 6 inch saw and drill up from the bottom stopping at the bottom of the plywood. Neal I’ll pm you my phone number Incase you want to talk. There’s one more part if you want to use the Newmar block of circle around the hose to keep critters out, in the first picture you can see it has a lip to hold the disc in the hole.
Hope this helps, Stuart
__________________
Newmar 2016 Canyon Star 3710
Newmar 2018 Dutch Star 4369 SP
Newmar 2023 Dutch Star 4369 FL
Entegra 2025 Cornerstone 45D on order
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02-11-2019, 09:23 AM
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#14
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Senior Member
Join Date: Nov 2014
Posts: 2,515
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Quote:
Originally Posted by Stuart W
Neal the first thing I did was use a strong magnet from the top side to look for metal below, as it turns out the edge closest to the out side just touched the metal frame, if your staying at the same depth from the other hole you should be fine. My one concern is another member had posted a picture of a wet bay with only the frame and his showed a flat steel strap up the middle depth wise. That’s why the magnet test should be done. The side of the hole-saw was complicated the top white lid was good at 5.5 inch ( at 6 inch the screw holes didn’t all hit wood and deck to screw into)but if you measure the black sleeve near the collar it didn’t fit the 5.5 opening so I went up to 6 a 6 inch hole-saw. With what I know now I would extend the drill pilot as long as it will go then drill the 5.5 inch hole from the top if you have the room with the wet bay disassembled, only allowing the pilot to go through the bottom sheet metal, then switch to the 6 inch saw and drill up from the bottom stopping at the bottom of the plywood. Neal I’ll pm you my phone number Incase you want to talk. There’s one more part if you want to use the Newmar block of circle around the hose to keep critters out, in the first picture you can see it has a lip to hold the disc in the hole.
Hope this helps, Stuart
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Do you have to drill holes into the metal sleeve?
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