Originally posted by Cate&Rob
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Fresh water tank not emptying completely.
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Neil Citro
2018 Reflection 28BH Pepwave
2019 F350 6.7L Long Bed Crew Cab
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Cate&Rob Guest I did an experiment today and ran my pump until it sputtered. Then I emptied into a bucket and got only a couple of gallons, so either I have the sump (need to bite the bullet and drop the rear coroplast, or something is engineered differently in my tank that allows it to get more water out. Rig was level, so not tipped to the side at all.Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Neil Citro
2018 Reflection 28BH Pepwave
2019 F350 6.7L Long Bed Crew Cab
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Originally posted by ncitro View PostCate&Rob Guest I did an experiment today and ran my pump until it sputtered. Then I emptied into a bucket and got only a couple of gallons, so either I have the sump (need to bite the bullet and drop the rear coroplast, or something is engineered differently in my tank that allows it to get more water out. Rig was level, so not tipped to the side at all.
For now I have to assume I have a 42 gallon tank rather than 52 gallons. I keep two 6 gallon water jugs in my rig along with a folding hand truck and have to add those after 4 days.
Jim
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Originally posted by MidwestCamper View PostJust returned from a trip where the water pump had been pulling air prior to traveling back home. Once at home, and using a 5 gallon bucket I measured approximately 10 gallons of water from the tank drain on my 2600RB.
Jim2020 Imagine MK2670
2020 Chevy Silverado 2500 Gas 6.6L
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Originally posted by chrisopy View Post
So the pump was sucking air while it was off and you were traveling?
It was beginning to suck in air while turned on and in use at the campsite. I turned off the pump and we packed up and traveled home.
It was when we were home that I performed the bucket drain test to see how much water was still in the tank. It seems the older units like mine have a pickup tube that is above the floor of the tank.
Jim
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Originally posted by MidwestCamper View PostJust returned from a trip where the water pump had been pulling air prior to traveling back home. Once at home, and using a 5 gallon bucket I measured approximately 10 gallons of water from the tank drain on my 2600RB.
Jim
I poured the water that was in the bucket into a bottle that had measurement marks, so I know the total is 48 oz. (I waited until water stopped coming out of the drain.)
Nothing I recently did changed the fresh water tank setup--it's been my experience on many occasions to only have a small amount of water left in the tank when the pump stopped working (but I'd never measured it).Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
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Cate&Rob ,
In post 14 you reference a "sump tank". So Jim's tank is different from mine (shown below)?
10 gallons is an awful lot to be left in the tank.
HowardForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
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howson
Hi Howard,
The picture attached to post 10, more clearly shows the small "sump" (now known to be 48 oz ) at the bottom of the tank where your water pick-up line is attached. I have not pulled this section of coroplast on my Reflection, but I know that there are still several gallons of water in my tank when the pump starts drawing air. JimGuest has reported the same thing, so we must have tanks where the pickup is higher than the bottom of the tank. As mentioned earlier, this is a relatively normal way to plumb a water tank to avoid drawing sediment into the pump. Unfortunately it also means that we are are carrying around water that we can't use.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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Originally posted by Cate&Rob View Posthowson
Hi Howard,
The picture attached to post 10, more clearly shows the small "sump" (now known to be 48 oz ) at the bottom of the tank where your water pick-up line is attached. I have not pulled this section of coroplast on my Reflection, but I know that there are still several gallons of water in my tank when the pump starts drawing air. JimGuest has reported the same thing, so we must have tanks where the pickup is higher than the bottom of the tank. As mentioned earlier, this is a relatively normal way to plumb a water tank to avoid drawing sediment into the pump. Unfortunately it also means that we are are carrying around water that we can't use.
Rob
1 PhotoForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Neil Citro
2018 Reflection 28BH Pepwave
2019 F350 6.7L Long Bed Crew Cab
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Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
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Originally posted by MidwestCamper View PostWhat would a new style water tank cost?
Without pulling the coroplast I'm wondering if we can do some plumbing mods and tee off the drain line to feed the pump?
10 gallons of water I cannot use is really wasteful.
Jim
Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
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Originally posted by howson View Post
The drain line is higher than the output line, Jim. (That won't help!)
I believe in my case the drain must be lower than the output line to the pump or I would not be able to drain off the 10 gallons. Is there a pic of the old style tank?
My drain is not like yours with the gate valve.
Jim
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Guesthowson Floyd&Tamily
Hi Jim,
This parallel post https://gdrvowners.com/forum/operati...king-air/page2, particularly the scope pictures attached to post 23, have me wondering if we have some sort of contamination effect going on that is preventing drawing out the last few gallons of water. I guess one or the other or both of us are going to have to pull down the coroplast and take a look . I have "assumed" that the pick-up in my early build Reflection is above the bottom of the tank because of the way it behaves. I have never seen an actual picture of this. Your trailer is a much later build . . . it is difficult to imagine (no pun intended ) that Grand Design would use different configuration water tanks across different products, at the same time.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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Originally posted by MidwestCamper View Post
Howard,
I believe in my case the drain must be lower than the output line to the pump or I would not be able to drain off the 10 gallons. Is there a pic of the old style tank?
My drain is not like yours with the gate valve.
JimForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
- Likes 1
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