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Topic: Changed out toilet, Sealand 510 for Dometic 320 (Read 2236 times) previous topic - next topic

Changed out toilet, Sealand 510 for Dometic 320

Completed last night, as a leaking valve for the 510 seemed like a good time to upgrade the 21 year old Sealand 510.  My parts store guy Joe, at http://www.nwrvsupply.com/

recommended the Dometic 320.  I bought it all from NW RV Supply with only Joe's recommendation as I've known and been a satisfied customer of his for over 10 years.  After reading positive and negative reviews I installed the 320.  After a days use by the wife and myself we are very pleased with the upgrade.

You can see the difference in height in the pictures with relationship to the cabinet, cabinet still has easy access.  No more feeling of a loose base, appreciate the height, and and improved function of the porcelin bowl automatic cleaning rinse and low water usage.  An 1/8 inch drill was used for pilot holes for the included 8 stainless screws used to place the 2 bolt adapter mount over and drill thru the 4 bolt attachment.  As is the 510, the 320 is for direct drop black tank.

I cutoff the water supply and installed a Sharkbite water cutoff to make any future leak not a problem.  I also purchased the Dometic adapter kit that made it very easy to convert from the older 4 bolt hold down to the new toilets 2 bolt hold down.  At first it seemed expensive, however the ease it made the install, it was worth it, and made for a very precise, stable base.  I would not do the upgrade again without it.  The connection was made with a normal toilet 1/2 to 3/8 reinforced connector finishing off the easy upgrade.  Pictures are of old 510 and new 320 which is available in bone and white.  I chose white as it was in stock and local from Northwest RV Supply in Eugene, Oregon.
Amazon.com: Dometic 385311719 310 Mounting Adapter Kit - White: Automotive
Dometic | ReVolution 320 Series Toilets | 302320183
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan

Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #1
I thank you but do not think it will work. I do not have a direct drop I believe we have at lease 1 90 deg it is a 4210 U320

Rick

Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #2
Our kids have a 2000 4210 U320 and it has a manual toilet.  I don't know the tank configuration. 
Rick & Rhonda
2003 U320 4220  Build #6199
Was
91 36' GV 300 Caterpillar, 92 40' U280 300 Cummins, 97 36' U295 300 Cummins, 2002
U320 450 Cummins
(Guess we're hooked)

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Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #3
Completed last night, as a leaking valve for the 510 seemed like a good time to upgrade the 21 year old Sealand 510.  My parts store guy Joe, at http://www.nwrvsupply.com/
recommended the Dometic 320.  I bought it all from NW RV Supply with only Joe's recommendation as I've known and been a satisfied customer of his for over 10 years.  After reading positive and negative reviews I installed the 320.  After a days use by the wife and myself we are very pleased with the upgrade.

You can see the difference in height in the pictures with relationship to the cabinet, cabinet still has easy access.  No more feeling of a loose base, appreciate the height, and and improved function of the porcelin bowl automatic cleaning rinse and low water usage.  An 1/8 inch drill was used for pilot holes for the included 8 stainless screws used to place the 2 bolt adapter mount over and drill thru the 4 bolt attachment.  As is the 510, the 320 is for direct drop black tank.

I cutoff the water supply and installed a Sharkbite water cutoff to make any future leak not a problem.  I also purchased the Dometic adapter kit that made it very easy to convert from the older 4 bolt hold down to the new toilets 2 bolt hold down.  At first it seemed expensive, however the ease it made the install, it was worth it, and made for a very precise, stable base.  I would not do the upgrade again without it.  The connection was made with a normal toilet 1/2 to 3/8 reinforced connector finishing off the easy upgrade.  Pictures are of old 510 and new 320 which is available in bone and white.  I chose white as it was in stock and local from Northwest RV Supply in Eugene, Oregon.
Amazon.com: Dometic 385311719 310 Mounting Adapter Kit - White: Automotive
Dometic | ReVolution 320 Series Toilets | 302320183
Did the exact same a few months ago (after rebuilding the 510 twice) It was time, I just barely fit, but works really nice!
Prior 2003 U295  40ft  400Hp -Sold
2020 F350 Tremor - Sold
2021 Bundutec Roadrunner - Sold
2017 Airstream Classic - Sold that POS
2017 F250 - Sold
2019 Sprinter Van - Sold
2022 Winnebago Revel 4x4


Army Airborne Vet.

Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #4
Jack,
 
Did you have to modify the cabinet door behind the 320 to be able to use it?
 
Thanks,
 
Trent
Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #5
I thank you but do not think it will work. I do not have a direct drop I believe we have at lease 1 90 deg it is a 4210 U320

Rick

We don't have a direct drop either and the pipe sweeps back toward the inside of the coach before it drops into the large tank, but we have mounted the 320 Dometic and it works fine!  Hope this helps!
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Changed out toilet, Sealand 510 for Dometic 320

Reply #6
Jack, Did you have to modify the cabinet door behind the 320 to be able to use it?

I did not modify the door.  I still have good access.  Recently I replaced a water line below in this area to the water heater.  I just removed the cabinet door to do the work, and then re installed.
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan