Reply
 
Thread Tools Display Modes
 
Old 01-03-2014, 08:11 PM   #1
Newbie
 
City: Fairhope, Al
Country: Fairhope, Al
Vessel Name: THXKIDS II
Vessel Model: Camano 31
Join Date: Dec 2013
Posts: 4
Red face Holding Tank Level

I'm a new owner of a Comano 31 and new to this forum. I cannot for the life of me figure out how to determine the level in the holding tank of this boat. My simple solution, unless I'm overlooking a method already present, is to simply drill a small hole for a dip stick and then cork it but sure don't want to mess with tank integrity with something stupid/unworkable.
Input appreciated.
__________________
Advertisement

Capnal is offline   Reply With Quote
Old 01-03-2014, 08:14 PM   #2
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,994
Greetings,
Welcome aboard. Hopefully information input and NOT what normally goes into the tank.
__________________

__________________
RTF
RT Firefly is online now   Reply With Quote
Old 01-03-2014, 08:48 PM   #3
Guru
 
Moonstruck's Avatar
 
City: Hailing Port: Charleston, SC
Country: USA
Vessel Name: Moonstruck
Vessel Model: Sabre 42 Hardtop Express
Join Date: Nov 2008
Posts: 7,847
Quote:
Originally Posted by Capnal View Post
I'm a new owner of a Comano 31 and new to this forum. I cannot for the life of me figure out how to determine the level in the holding tank of this boat. My simple solution, unless I'm overlooking a method already present, is to simply drill a small hole for a dip stick and then cork it but sure don't want to mess with tank integrity with something stupid/unworkable.
Input appreciated.
Hi Capnal, I would not recommend a dip stick for the holding tank. There are many solutions to finding the level. I think SeahorseII has installed one he is happy with. Why don't you look under COMMUNITY in the dark red bar at top and click on MEMBER LIST. The click on S and scroll to SeahorseII. Click on his his name for his profile page, and then click on SEND PRIVATE MESSAGE.

You can also search the various marine supplier sites. They have senders and gauges.
__________________
Don on Moonstruck
Sabre 42 Hardtop Express & Blackfin 25 CC
When cruising life is simpler, but on a grander scale (author unknown)
http://moonstruckblog.wordpress.com/
Moonstruck is offline   Reply With Quote
Old 01-03-2014, 08:49 PM   #4
Newbie
 
City: Fairhope, Al
Country: Fairhope, Al
Vessel Name: THXKIDS II
Vessel Model: Camano 31
Join Date: Dec 2013
Posts: 4
Yes, "info" input, but I'm sure that from time to time on this forum, the "info" input could be confused with the other ;-)
Capnal is offline   Reply With Quote
Old 01-03-2014, 08:50 PM   #5
Guru
 
N4712's Avatar
 
City: South FL
Country: U.S.A
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,613
Quote:
Originally Posted by Capnal View Post
I'm a new owner of a Comano 31 and new to this forum. I cannot for the life of me figure out how to determine the level in the holding tank of this boat. My simple solution, unless I'm overlooking a method already present, is to simply drill a small hole for a dip stick and then cork it but sure don't want to mess with tank integrity with something stupid/unworkable. Input appreciated.
Welcome aboard! We would just take the floor up and get someone to rock the boat so we can get a rough estimate by watching the sloshing of liquid in the tank.
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
N4712 is offline   Reply With Quote
Old 01-03-2014, 08:56 PM   #6
Guru
 
hollywood8118's Avatar
 
City: Port Townsend Washington
Country: USA
Vessel Name: " OTTER "
Vessel Model: Ocean Alexander Europa 40
Join Date: Nov 2009
Posts: 1,482
poo tank X dipstick = shitty mess...

There are many alternatives,

float based ( highest probable maintenance ) typically less cost

foil sensor applied to the exterior of tank ( can have issues with tank scum buildup ) mid cost point.

Transducer based, highest cost.. typically best performing.

The access to the tank for install of one of the above may decide the unit you use.

Good luck, nothing worse than a full holding tank at a inopportune time..
HOLLYWOOD
hollywood8118 is offline   Reply With Quote
Old 01-03-2014, 09:04 PM   #7
Senior Member
 
Delia Rosa's Avatar
 
City: St. Catharines
Country: Canada
Vessel Name: Delia Rosa
Vessel Model: C & L Sea Ranger 47 Raised Pilothouse
Join Date: Jan 2011
Posts: 378
We used the gobius exterior tank monitor system on our steel tank.... Great system.... No fuss no muss!
__________________
Susan and Dan
"Delia Rosa"
Point Breeze, N.Y.
Delia Rosa is offline   Reply With Quote
Old 01-03-2014, 10:52 PM   #8
Guru
 
Northern Spy's Avatar
 
City: Powell River, BC
Country: Canada
Vessel Name: Northern Spy
Vessel Model: Nordic Tug 26
Join Date: Feb 2012
Posts: 2,665
In the meantime, while deciding upon a solution, flashlights are inexpensive and portable. If you have access, shine from behind or perpendicular to your viewpoint and translucent poly tanks glow. I put an LED behind mine, and it works so well I haven't yet gotten around to putting in a remote indicator yet.

Oh, and welcome!
Northern Spy is offline   Reply With Quote
Old 01-03-2014, 11:08 PM   #9
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 4,803
Tank Tenders work extremely well; fairly simple to install; can be used for multiple tanks.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 01-04-2014, 02:54 AM   #10
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,161
I installed the Solo Panels for both the holding and fresh water tanks by Ferriello Sales. They are suitable for poly or fiberglass tanks, but won't work on metal tanks. Easy to install, accurate, affordable and reliable. These are the same models SeahorseII installed.

Here's another thread that discusses the system.

Ordered our new head!
__________________
Al

Custom Google Trawler Forum Search
FlyWright is online now   Reply With Quote
Old 01-06-2014, 07:02 PM   #11
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
You can shine a light on the poly tank and see the liquid level. I installed a sensor that relies on pads glued to the outside of the tank. The system works fine on the potable water tank but not on the holding tank because of buildup on the inside tank walls. If I clean the inside of the tank, the sensor will work for a while, than show "full" when it's not>
rwidman is offline   Reply With Quote
Old 01-06-2014, 07:37 PM   #12
Guru
 
Steve's Avatar
 
City: Thibodaux, Louisiana
Country: USA
Vessel Name: Gumbo
Vessel Model: 2003 Monk 36
Join Date: Oct 2007
Posts: 3,605
Quote:
Originally Posted by FlyWright View Post
I installed the Solo Panels for both the holding and fresh water tanks by Ferriello Sales. They are suitable for poly or fiberglass tanks, but won't work on metal tanks. Easy to install, accurate, affordable and reliable. These are the same models SeahorseII installed.

Here's another thread that discusses the system.

Ordered our new head!
I installed a Snake River tank monitor on my 2002 Camano 31 it worked fine for the time I had them on about 3 years they were working when I sold her and as far as I know still are.
I installed the same system on my Monk 36 in 2009 it is still working fine.
Ferriello is a group or person who left Snake River company to market their own, similar device.
Both used the foil tape sensors mounted on translucent tanks the Camano 15 Gal the Monk 45 Gal
I would not recommend drilling into the tank for a dip tube.
Good luck
__________________
Steve W.
http://mvgumbo.blogspot.com/
Steve is offline   Reply With Quote
Old 01-06-2014, 08:05 PM   #13
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,161
Quote:
Originally Posted by WesK View Post
You can shine a light on the poly tank and see the liquid level. I installed a sensor that relies on pads glued to the outside of the tank. The system works fine on the potable water tank but not on the holding tank because of buildup on the inside tank walls. If I clean the inside of the tank, the sensor will work for a while, than show "full" when it's not>
Mine have been in for 2 1/2 years on 37 year old fiberglass tanks and still work fine. I doubt my holding tank 'buildup' is a problem as it's pretty much liquified by the macerator and emptied shortly after use.

There is a feature on mine that allows you to recalibrate the system extremes (full and/or empty) if needed over time. I've never needed this, but maybe that could help in your case.
__________________
Al

Custom Google Trawler Forum Search
FlyWright is online now   Reply With Quote
Old 01-06-2014, 08:08 PM   #14
Newbie
 
City: Fairhope, Al
Country: Fairhope, Al
Vessel Name: THXKIDS II
Vessel Model: Camano 31
Join Date: Dec 2013
Posts: 4
Thanks to all for the input on my holding tank level question; I have ordered the Fiorello external foil system and will install as soon as sane weather returns. Will report back.
Capnal is offline   Reply With Quote
Old 01-07-2014, 08:05 AM   #15
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by FlyWright View Post
............. I doubt my holding tank 'buildup' is a problem as it's pretty much liquified by the macerator and emptied shortly after use. ..
If I clean the inside wall of my holding tank in the area of the sensors my gauge system (I don't remember the brand) works fine. After filling and emptying the tank a few times, it reads "full" until I clean the tank wall again. That tells me it's a buildup on the wall that's causing my problem.

We don't empty the tank shortly after use, we usually empty it when it's nearly full.

I don't often clean the tank because it's messy and involves pumping the cleaning water into the river which is technically illegal.

That's my experience on my boat. Perhaps the difference is, I have a manual head so there's no real maceration before the sewage gets to the tank.
rwidman is offline   Reply With Quote
Old 01-07-2014, 09:06 AM   #16
Guru
 
Steve's Avatar
 
City: Thibodaux, Louisiana
Country: USA
Vessel Name: Gumbo
Vessel Model: 2003 Monk 36
Join Date: Oct 2007
Posts: 3,605
Here are a couple of pictures of your Camano at Ft McRea near Pensacola FL
She was "Balancing Act" then. My Camano "Spirt" had black Canvas and was rafted to her and can hardly be seen. That is a beautiful spot.
Attached Thumbnails
Click image for larger version

Name:	Ft McRea Anchorage.jpg
Views:	66
Size:	137.2 KB
ID:	26499   Click image for larger version

Name:	Leaving Ft. McRea.jpg
Views:	65
Size:	142.3 KB
ID:	26500  
__________________
Steve W.
http://mvgumbo.blogspot.com/
Steve is offline   Reply With Quote
Old 01-07-2014, 09:48 AM   #17
Newbie
 
City: Fairhope, Al
Country: Fairhope, Al
Vessel Name: THXKIDS II
Vessel Model: Camano 31
Join Date: Dec 2013
Posts: 4
Thanks, Steve; that is indeed a beautiful spot. Have anchored at east end of Big Lagoon many times. Used to be that one could take a pretty large vessel through the south cut into P'cola bay, but last time I was there, hurricanes had completely changed it. Haven't been there in years though as I'm just coming out of a 13 year boating hiatus due to late wife's physical condition (crutches not too boat-friendly).
Cheers!
Capnal is offline   Reply With Quote
Old 01-07-2014, 09:51 AM   #18
Guru
 
City: Fort Myers
Country: USA
Join Date: Jul 2013
Posts: 953
I find I can sense when its time to head to the pump out. Just me and the wife I know we have so long, when the kids stop in all bets are off! ;-)

Oh yea, tip the pump out boat very well.
Marlinmike is offline   Reply With Quote
Old 01-07-2014, 11:05 AM   #19
Senior Member
 
SaltyDog's Avatar
 
Join Date: Nov 2007
Posts: 249
I know the OP has made a decision. Just for ideas for others.

It is almost worth replacing a holding tank with a poly tank. The light on top of the tank is 100% effective.

Other inexpensive (possibly) ideas.

(Yet to be made would be a clear non-permeable discharge hose.) With a little effort clear PVC pipe is available. Running the pipe up the side and lighting the opposite side would work. However venting would be required. Venting could be accomplished by cracking the deck fitting cap before taking a reading.

That old no longer used depth sounder could be put to use. (Odd shaped tanks may take some extra effort.) The idea is to place the transducer on the side of the tank with a couplant (a liquid that fills the void between the transducer and side wall of the tank. Water works well.) Start at a level low enough to be sure you have contents and look for a signal of the bottom (it will be the far side of the tank). That would be your reference signal. Repeat at higher levels until no reading is returned. That is above the content level. You can scan up the side the tank and find the level really fast. Works with any liquid in a tank.

I do this all the time in industrial applications using ultrasonic test equipment. It is rather pricey, hence the repurposing of old equipment suggestion. If anyone wants more info ask. Too much to try to post without knowing some specific application variables.

Anything inside the tank is asking for troubles.
SaltyDog is offline   Reply With Quote
Old 01-07-2014, 06:31 PM   #20
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,161
Quote:
Originally Posted by WesK View Post
If I clean the inside wall of my holding tank in the area of the sensors my gauge system (I don't remember the brand) works fine. After filling and emptying the tank a few times, it reads "full" until I clean the tank wall again. That tells me it's a buildup on the wall that's causing my problem.

We don't empty the tank shortly after use, we usually empty it when it's nearly full.

I don't often clean the tank because it's messy and involves pumping the cleaning water into the river which is technically illegal.

That's my experience on my boat. Perhaps the difference is, I have a manual head so there's no real maceration before the sewage gets to the tank.
Sounds like the higher density of the buildup is throwing off the density calibration for the sensor. Try recalibrating your system instead of cleaning. Maybe it'll improve its sensing.
__________________

__________________
Al

Custom Google Trawler Forum Search
FlyWright is online now   Reply With Quote
Reply

Tags
holding tank, tank level

Thread Tools
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





All times are GMT -5. The time now is 07:10 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012