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Old 09-04-2017, 05:41 PM   #1
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Draining the fresh water tank

I turned the knob under the shower to drain the fresh water tank but nothing came out. What else do I need to do to drain the tank? Thanks!
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Old 09-04-2017, 06:03 PM   #2
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Puzzled. The drain for my fresh water tank is right under the tank, not the shower.

Are you sure you have the tank drain and not just a low point drain for the water lines?
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Old 09-05-2017, 04:53 PM   #3
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I have a 2017 and the fresh water drain valve is in an enclosed access door that sits to the left of the tank and forward of the left rear tires.
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Old 09-06-2017, 05:18 AM   #4
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Draining fresh water

Is that valve under the RV or on the side of RV, front of the left rear tire? Thanks!
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Old 09-06-2017, 06:05 AM   #5
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Is that valve under the RV or on the side of RV, front of the left rear tire? Thanks!
Actually, you access the drain valve via an outsidexaccess door, where there is another access door to valves. This is the same location that has the lines for winterize get the RV. Again, this is for my unit, a 2017 Sunseeker 2400R.
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Old 09-06-2017, 07:45 AM   #6
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Actually, you access the drain valve via an outsidexaccess door, where there is another access door to valves. This is the same location that has the lines for winterize get the RV. Again, this is for my unit, a 2017 Sunseeker 2400R.


Which year and model SunSeeker do you have? On the 2400W the fresh water tank low point valve is under the RV just in front of the rear bumper behind a large screw-on access port. There are also 2 hoses, red and blue, with end-caps that are removed when winterizing.

Hope this helps.

Bob & Cynthia
2017 SunSeeker MBS 2400w
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Old 09-11-2017, 07:42 AM   #7
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Which year and model SunSeeker do you have? On the 2400W the fresh water tank low point valve is under the RV just in front of the rear bumper behind a large screw-on access port. There are also 2 hoses, red and blue, with end-caps that are removed when winterizing.

Hope this helps.

Bob & Cynthia
2017 SunSeeker MBS 2400w


Thanks! 2018 2400W Sunseeker. Thanks, we will be getting out of storage this weekend and check it out.
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Old 09-11-2017, 07:45 AM   #8
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Actually, you access the drain valve via an outsidexaccess door, where there is another access door to valves. This is the same location that has the lines for winterize get the RV. Again, this is for my unit, a 2017 Sunseeker 2400R.


Thanks! Is there a manual for winterizing the unit. Mercedes Benz 2018 Sunseeker
2400W?
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Old 09-11-2017, 07:49 AM   #9
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Thanks! 2018 2400W Sunseeker. Thanks, we will be getting out of storage this weekend and check it out.
Didn't your dealer show you this during the PDI/Customer orientation?

Shame on them if they didn't as this is basic (but important) R/V 101 information that everyone who purchases a new unit should be made aware of.
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Old 09-11-2017, 07:52 AM   #10
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Didn't your dealer show you this during the PDI/Customer orientation?



Shame on them if they didn't as this is basic (but important) R/V 101 information that everyone who purchases a new unit should be made aware of.


No, they did not. We have to take back because of stabilizer issues and we have lots of questions. Hopefully, they can answer.
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Old 09-11-2017, 07:58 AM   #11
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No, they did not. We have to take back because of stabilizer issues and we have lots of questions. Hopefully, they can answer.
If they are a good dealer, they 'should' answer every question you have.
You paid them a lot of money for your rig.
Answering questions and helping you understand the operation of your new unit should be paramount to them.
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Old 09-11-2017, 02:18 PM   #12
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Originally Posted by Rkloud9 View Post
Which year and model SunSeeker do you have? On the 2400W the fresh water tank low point valve is under the RV just in front of the rear bumper behind a large screw-on access port. There are also 2 hoses, red and blue, with end-caps that are removed when winterizing.

Hope this helps.

Bob & Cynthia
2017 SunSeeker MBS 2400w
I have the 2017 2400R
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Old 09-11-2017, 02:26 PM   #13
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I have the 2017 2400R


2018 MBS Sunseeker 2400w
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Old 09-11-2017, 04:23 PM   #14
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2018 MBS Sunseeker 2400w


The manual we got with our 2017 SunSeeker 2400W was a generic Forest River class C publication that gives you very basic info, but nothing specific to the 2400W. A lot of the basics do cross over the many models they build, but where all the stuff is located, and unit-specific features are not covered... the dealer can be a big help if they are willing. Be prepared to take notes or shoot a video. I believe there are some videos on the FR website related to winterization. Also, try a search on YouTube... lots of info there.

Hope you don't have to winterize your unit now... Fall is a great time of year to get "out there"!

Bob & Cynthia
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Old 09-17-2017, 09:45 AM   #15
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We found the hose on the tank but nothing comes out, even after filling the tank, and removing the cap from the hose. What are we doing wrong?
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Old 09-17-2017, 11:49 PM   #16
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We found the hose on the tank but nothing comes out, even after filling the tank, and removing the cap from the hose. What are we doing wrong?

If you are finding the two hoses inside the low point access panel (screw-on cap about 5" in diameter under the RV just in front of the rear bumper on the driver's side), there is also a small valve coming out of the bottom of the fresh water tank that is the tank drain, also in the same area. I believe the two hoses are for draining the hot and cold plumbing lines, separate from the tank.

Under the shower is another access panel to get to the water pump. Next to that panel is the "winterize" valve. You will find a hose attached to that valve inside the same pump access panel. Flipping that valve to "winterize" redirects the suction from the pump to this hose, which can be placed in a bottle of RV anti-freeze... this will send the antifreeze throughout the plumbing of your camper. DO NOT USE THIS PROCESS until you understand how all the plumbing works in your RV... many folks effectively winterize their units by draining all the water and blowing out the pipes with a tire pump or small compressor. Whichever method you use, be sure of the following:

- all tanks are empty.
- water heater is drained - there is a drain plug accessed from the outside water heater access panel.
- water heater by-pass valves are properly set... these are under/behind the drawer under the stove... there is another removable panel under this drawer that gets to these valves, or just take out the drawer. These valves allow you to take the water heater out of loop so you can run the antifreeze through the plumbing without filling the water heater with antifreeze.
- water filter under the bathroom sink is drained and removed. Re-assemble the housing if using antifreeze.
- outside shower hose drained.
- toilet "washing-wand" drained.
- shower wand/hose drained.
- kitchen and bath sink water valves drained
- RV Anti-freeze poured into sink and shower traps

If you are going the "compressed air blowing out pipes" route, using that tool will aid in getting all the water out of the above mentioned hoses, pipes, valves...

If you use the pump to distribute the anti-freeze, first be sure the water heater is drained and by-passed (otherwise you will waste 6 gallons of antifreeze!)

It is helpful to have a helper at the water pump switch.

With the hose in the anti-freeze bottle, and all valves off, go to each faucet/toilet/shower valve, turn on the pump, and open each valve until you see pink, then shut off the pump/close the valve. Start at the kitchen sink, as that is the longest run. You will be surprised how fast that little pump sucks out the anti-freeze (thus, the helper!) 2-3 gallons of anti freeze does the job.

Hope this helps!

Bob & Cynthia
2017 SunSeeker MBS 2400W
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Old 09-18-2017, 06:20 AM   #17
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Originally Posted by Rkloud9 View Post
If you are finding the two hoses inside the low point access panel (screw-on cap about 5" in diameter under the RV just in front of the rear bumper on the driver's side), there is also a small valve coming out of the bottom of the fresh water tank that is the tank drain, also in the same area. I believe the two hoses are for draining the hot and cold plumbing lines, separate from the tank.

Under the shower is another access panel to get to the water pump. Next to that panel is the "winterize" valve. You will find a hose attached to that valve inside the same pump access panel. Flipping that valve to "winterize" redirects the suction from the pump to this hose, which can be placed in a bottle of RV anti-freeze... this will send the antifreeze throughout the plumbing of your camper. DO NOT USE THIS PROCESS until you understand how all the plumbing works in your RV... many folks effectively winterize their units by draining all the water and blowing out the pipes with a tire pump or small compressor. Whichever method you use, be sure of the following:

- all tanks are empty.
- water heater is drained - there is a drain plug accessed from the outside water heater access panel.
- water heater by-pass valves are properly set... these are under/behind the drawer under the stove... there is another removable panel under this drawer that gets to these valves, or just take out the drawer. These valves allow you to take the water heater out of loop so you can run the antifreeze through the plumbing without filling the water heater with antifreeze.
- water filter under the bathroom sink is drained and removed. Re-assemble the housing if using antifreeze.
- outside shower hose drained.
- toilet "washing-wand" drained.
- shower wand/hose drained.
- kitchen and bath sink water valves drained
- RV Anti-freeze poured into sink and shower traps

If you are going the "compressed air blowing out pipes" route, using that tool will aid in getting all the water out of the above mentioned hoses, pipes, valves...

If you use the pump to distribute the anti-freeze, first be sure the water heater is drained and by-passed (otherwise you will waste 6 gallons of antifreeze!)

It is helpful to have a helper at the water pump switch.

With the hose in the anti-freeze bottle, and all valves off, go to each faucet/toilet/shower valve, turn on the pump, and open each valve until you see pink, then shut off the pump/close the valve. Start at the kitchen sink, as that is the longest run. You will be surprised how fast that little pump sucks out the anti-freeze (thus, the helper!) 2-3 gallons of anti freeze does the job.

Hope this helps!

Bob & Cynthia
2017 SunSeeker MBS 2400W


Thanks for the detailed instructions! We will check it out. Again, thanks!!

Kris and Sharon Kline
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