Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-13-2020, 04:06 PM   #1
Senior Member
 
Kahoona's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,059
Beach Sand in the gray tank?

Has anyone had a build up of beach sand in the gray tank. I am careful to rinse but not everyone is. Will it be a problem?
__________________
33' 2008 National Tropical on a Freightliner chassis.RVM#189
Kahoona is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-13-2020, 04:50 PM   #2
Senior Member
 
jerichorick's Avatar
 
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,781
Quote:
Originally Posted by Kahoona View Post
Has anyone had a build up of beach sand in the gray tank. I am careful to rinse but not everyone is. Will it be a problem?
I have never heard of this happening. When you dump there is usually a strong flow off the bottom of the tank. If you have been on beaches for a while, after you dump you could run the shower for a while to build up some water in the tank and then dump again. If you have a clear extension on your dump hose you can monitor the condition of the dump water. When washing off after beach time you might consider closing the gray tank valve if you have it open. I leave mine open when hooked up.
__________________
Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
jerichorick is offline   Reply With Quote
Old 09-13-2020, 05:01 PM   #3
Senior Member
 
Join Date: Nov 2015
Posts: 18,274
Go to beach and you will have sand

So what.........allow grey tank to get 3/4 full and then Dump

WHOOSH----contents flow out under volume/weight of liquids

If concerned....run some water down sink/shower drains and dump again
__________________
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Old 09-13-2020, 10:24 PM   #4
Senior Member
 
Join Date: Jan 2009
Posts: 3,183
Quote:
Originally Posted by Old-Biscuit View Post
Go to beach and you will have sand

So what.........allow grey tank to get 3/4 full and then Dump

WHOOSH----contents flow out under volume/weight of liquids

If concerned....run some water down sink/shower drains and dump again
For most rigs, yes. But I've seen some gray tank piping that didn't give any kind of WHOOSH. Slow as molasses was more the flow rate. The OP may have reason to be a bit concerned if his gray drain is slow.

No matter what, I'd do my best to keep sand out of the holding tank and its inherent abrasiveness away from the drain valve.
__________________
03 Itasca Sunova, Workhorse P32 with the 8.1 and 4L85-E
Mudfrog is offline   Reply With Quote
Old 09-13-2020, 11:51 PM   #5
Senior Member
 
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 2,493
SLOW drain on Gray wud make me suspect VENT issues?
__________________
(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
THenne1713 is offline   Reply With Quote
Old 09-14-2020, 08:18 AM   #6
Senior Member
 
Kahoona's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,059
Quote:
Originally Posted by Mudfrog View Post
For most rigs, yes. But I've seen some gray tank piping that didn't give any kind of WHOOSH. Slow as molasses was more the flow rate. The OP may have reason to be a bit concerned if his gray drain is slow.

No matter what, I'd do my best to keep sand out of the holding tank and its inherent abrasiveness away from the drain valve.

Yes. We do try to keep it out but sand gets everywhere at the beach. Ours does go whoosh so we are probably fine. Won't worry. Thanks.





Quote:
Originally Posted by Old-Biscuit View Post
Go to beach and you will have sand

So what.........allow grey tank to get 3/4 full and then Dump

WHOOSH----contents flow out under volume/weight of liquids

If concerned....run some water down sink/shower drains and dump again
Yes, whoosh.....Got it. No problem. Thanks.
__________________
33' 2008 National Tropical on a Freightliner chassis.RVM#189
Kahoona is offline   Reply With Quote
Old 09-14-2020, 08:20 PM   #7
Senior Member
 
chuckftboy's Avatar
 
Winnebago Owners Club
Fleetwood Owners Club
Holiday Rambler Owners Club
Join Date: Dec 2011
Location: North East Florida
Posts: 1,455
I live and RV a lot in Florida so sand is very common around here. Never had an issue with sand causing an issue in the grey tank. Since all our coaches have had washers if there were any issues we should have seen it.
__________________
2019 Horizon 42Q
Cummins L-9 450 HP
Maxum Chassis / IFS with Tag
chuckftboy is offline   Reply With Quote
Old 09-15-2020, 05:58 AM   #8
Senior Member
 
Tha_Rooster's Avatar
 
Join Date: Aug 2008
Location: Georgia
Posts: 7,071
Quote:
Originally Posted by Kahoona View Post
Has anyone had a build up of beach sand in the gray tank. I am careful to rinse but not everyone is. Will it be a problem?


If I had to have a problem that would be it. Do you have a tank flush.
__________________
2007 Fleetwood Revolution LE 40V
Tha_Rooster is online now   Reply With Quote
Old 01-19-2021, 11:15 AM   #9
Senior Member
 
Kahoona's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,059
Recap some months out.

I was doing research one day recently when I heard a commotion from the bathroom . My wife was in there muttering and as she is a redhead I tend to leave her be when that happens.Eventually I did ask out of fear for the plumbing and found her in the shower stall in 3-4 inches of water and sand. There was perhaps 2 cups of sand in there and she was going at it with a small plunger and a drain cleaning gizmo that removes hair when you run it in and out a couple of times. She was so upset that the water wouldn't go down! I recalled that this happened before and I went outside and pulled the blade valve on the gray tank and all was well once again.

I let the gray tank fill once in a while just to get that whoosh and clear it. It does look like we have sand in the pipes though. I am going to try getting 4" of standing water in the shower and get the whoosh going through the shower drain. I'll plug the other drains when I do it. I think that there is not enough room under the shower for a normal trap and whatever they used there might be holding more sand that it should.
__________________
33' 2008 National Tropical on a Freightliner chassis.RVM#189
Kahoona is offline   Reply With Quote
Old 01-19-2021, 11:32 AM   #10
Senior Member
 
Ljwt330's Avatar
 
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,128
Quote:
Originally Posted by Kahoona View Post
Recap some months out.

I was doing research one day recently when I heard a commotion from the bathroom . My wife was in there muttering and as she is a redhead I tend to leave her be when that happens.Eventually I did ask out of fear for the plumbing and found her in the shower stall in 3-4 inches of water and sand. There was perhaps 2 cups of sand in there and she was going at it with a small plunger and a drain cleaning gizmo that removes hair when you run it in and out a couple of times. She was so upset that the water wouldn't go down! I recalled that this happened before and I went outside and pulled the blade valve on the gray tank and all was well once again.

I let the gray tank fill once in a while just to get that whoosh and clear it. It does look like we have sand in the pipes though. I am going to try getting 4" of standing water in the shower and get the whoosh going through the shower drain. I'll plug the other drains when I do it. I think that there is not enough room under the shower for a normal trap and whatever they used there might be holding more sand that it should.

My thoughts.

Sand is heavy and does not float. For that much sand to be in your shower means, IMO, that the back flow from the grey tank, caused by water entering from other sink drains, must have been pretty strong. The only other explanation would be the sand was in the shower trap, and was agitated by the shower water entering and was carried into the pan due to lack of draining.

I think if this was my issue, I would empty the grey tank, remove the shower strainer, stick a hose into the shower drain, and flush the sand out of the shower line with water pressure. Any sand in the grey tank should flush out when the tank is repeatedly filled and flushed.
__________________
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
Ljwt330 is offline   Reply With Quote
Old 01-19-2021, 11:43 AM   #11
Senior Member
 
Kahoona's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,059
Quote:
Originally Posted by Ljwt330 View Post
My thoughts.

Sand is heavy and does not float. For that much sand to be in your shower means, IMO, that the back flow from the grey tank, caused by water entering from other sink drains, must have been pretty strong. The only other explanation would be the sand was in the shower trap, and was agitated by the shower water entering and was carried into the pan due to lack of draining.

I think if this was my issue, I would empty the grey tank, remove the shower strainer, stick a hose into the shower drain, and flush the sand out of the shower line with water pressure. Any sand in the grey tank should flush out when the tank is repeatedly filled and flushed.
That is a good idea. I will do that. It gets into the shower on feet. We can't do much foot rinsing because we have limited water. Hose it is.
__________________
33' 2008 National Tropical on a Freightliner chassis.RVM#189
Kahoona is offline   Reply With Quote
Old 01-19-2021, 10:47 PM   #12
Senior Member
 
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 2,493
(My 2nd/ 3rd thought) is that BEACH SAND will most likely STOP in the J-TRAP, and NOT flow to the tank? If that is the case, WET-VAC maybe the easiest, fastest relief IF TRAP restricted/ clogged w/ sand? Further, you can then inspect/ verify vac tank contents? 3) Shower/ tub drain backup is USUALLY SYMPTOM of FULL Gray tank. BTW, I have used wet vac w/ tweezer/ needle-nose to clear hair clogs from house bath/ shower drains several times pulling hair clogs as BIG AS FOREARM
.
__________________
(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10
THenne1713 is offline   Reply With Quote
Old 01-20-2021, 05:41 AM   #13
Senior Member
 
Tha_Rooster's Avatar
 
Join Date: Aug 2008
Location: Georgia
Posts: 7,071
Quote:
Originally Posted by Kahoona View Post
Has anyone had a build up of beach sand in the gray tank. I am careful to rinse but not everyone is. Will it be a problem?


I go to the beach a lot and no I don’t have sand because we clean up before entering coach.
__________________
2007 Fleetwood Revolution LE 40V
Tha_Rooster is online now   Reply With Quote
Old 01-20-2021, 07:50 AM   #14
Senior Member
 
Join Date: May 2017
Location: Metamora, MI
Posts: 4,893
Put a drain backflush adapter, cut a hole in the top of it, insert a powerwasher hose with a jetter fitting, push the hose into the tank and flush the heck out of the tank and clean it. Then, after the majority if gunk is out of the tank, put a strong garden hose on all drains and flush them into the tank. Repeat flushing the tank with the jetter.

If that doesn't clean it, then you have a real problem.
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
Dav L is offline   Reply With Quote
Reply

Tags
gray tank, tank



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Very fine gray sand in kitchen sink aerator billgr Class A Motorhome Discussions 14 08-25-2018 10:12 AM
Florida Beach Sand vs protecting jack deployment cmlintx Class A Motorhome Discussions 8 02-28-2016 06:11 PM
Gray tank into black tank DebnDan Boondocking 12 10-23-2014 10:25 PM
Sand in black water tank? Full.Monte RV Systems & Appliances 50 01-07-2012 08:15 AM
Sand, sand, and more sand.... fansill Camping Locations, Plans & Trip Reports 3 08-08-2011 07:05 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 05:52 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.