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Old 01-22-2012, 01:59 PM   #1
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Tank Level monitors

Have just bought and fitted a Gobius tank level monitoring system for my polyethelene holding tank.

So far very impressed.

No cutting or drilling, just stick 3 sensors on the outside of the tank, install the indicating panel up in the main toilet near the pump out switch, connect the system to* 12 V system and then calibrate the unit and Bob's your Uncle.

So far it is doing the job nicely and dead simple to fit.

I got mine from Defender, and must admit I knew nothing about them just bought it because it looked like what I wanted and with no cutting or drilling seemed simple.

will let you all know if I have any trouble with it in the future.
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Old 01-22-2012, 02:41 PM   #2
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RE: Tank Level monitors

Quote:
Tidahapah wrote:
Have just bought and fitted a Gobius tank level monitoring system for my polyethelene holding tank.

So far very impressed.

No cutting or drilling, just stick 3 sensors on the outside of the tank, install the indicating panel up in the main toilet near the pump out switch, connect the system to* 12 V system and then calibrate the unit and Bob's your Uncle.

So far it is doing the job nicely and dead simple to fit.

I got mine from Defender, and must admit I knew nothing about them just bought it because it looked like what I wanted and with no cutting or drilling seemed simple.

will let you all know if I have any trouble with it in the future.

I installed something similar but a different brand.* The one on the water tank works fine.* The one on the holding tank is confused by solids clinging to the inside of the tank wall and only works if I clean the inside of the tank.

I don't do that very often.
*
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Old 01-22-2012, 02:50 PM   #3
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RE: Tank Level monitors

Ron, a good way to clean the inside of the tank, it works in my RV is dumping a bunch of ice cubes in there and let them bang around and knock all the paper and stuff off of the walls.
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Old 01-22-2012, 06:50 PM   #4
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Tank Level monitors

Quote:
Tidahapah wrote:
Have just bought and fitted a Gobius tank level monitoring system for my polyethelene holding tank.

So far very impressed.
******** Flyright convinced me to do the same and I love it! Sooo simple!


-- Edited by SeaHorse II on Sunday 22nd of January 2012 07:52:51 PM
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Old 01-22-2012, 07:07 PM   #5
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RE: Tank Level monitors

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swampu wrote:
Ron, a good way to clean the inside of the tank, it works in my RV is dumping a bunch of ice cubes in there and let them bang around and knock all the paper and stuff off of the walls.

I installed an access port in the top so it's relatively easy to clean it with a hose and or brush (except it fills the tank).* It's just that I don't get excited enough about it to do it.

It would take a lot of ice and then if you're not underway in rough seas, the ice would just sit there and melt.
*
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Old 01-22-2012, 09:30 PM   #6
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RE: Tank Level monitors

I installed the monitors on my previous boat in 2005 and on my Monk in 2009 they were easy to install and worked very well.
When I bought the Monk the holding tank inside walls were caked with "crud". Every so often I'll undo the cover in the top of the tank, after pumping out, and bring a water hose down there and give the inside a good spraying then I pumpout the rinse water. this keeps the walls clean. Best done while the pumpout station is not busy as it takes a bit more time. Or at a marina with pumpout facilities at the slip.
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Old 01-23-2012, 06:00 AM   #7
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RE: Tank Level monitors

Cleaning and rinsing the inside of the tank is not that difficult, but dealing with the results is what keeps me from doing it more often. I wonder where the line would be drawn between discharging "sewage" and discharging water used too clean and rinse the tank?

More specifically, if I have the tank pumped and then wash and rinse the tank, would I be in violation by pumping the wash and rinse water overboard at my slip? Not that I would do that with people around, though.
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Old 01-23-2012, 06:08 AM   #8
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RE: Tank Level monitors

Quote:
rwidman wrote:
Cleaning and rinsing the inside of the tank is not that difficult, but dealing with the results is what keeps me from doing it more often. I wonder where the line would be drawn between discharging "sewage" and discharging water used too clean and rinse the tank?

More specifically, if I have the tank pumped and then wash and rinse the tank, would I be in violation by pumping the wash and rinse water overboard at my slip? Not that I would do that with people around, though.
*Even with a full holding*tank...if you macerate it and let some clorine bleach sit in it for a couple hours...it's no different than what a Lectra-san treatment is and that's a "legal" discharge in most areas.
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Old 01-23-2012, 07:06 AM   #9
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RE: Tank Level monitors

Stay legal, I do it at pumpout station, then suck out the wash/rinse water with the pumpout hose. That's why it is best done at a time the station is not busy
(tip the guy well, you'll only need to do it a couple times a year, if that) or in a slip with pumpout facilities.

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Old 01-23-2012, 07:43 AM   #10
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RE: Tank Level monitors

Seahorse11

*what type of material is your holding tank made from ?* Poly,

fiberglass?* Thanks
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Old 01-23-2012, 07:58 AM   #11
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RE: Tank Level monitors

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yo wrote:
*what type of material is your holding tank made from ?* Poly,

fiberglass?*
* * * * My tank is fiber glass but the system works on poly too. (Won't work on metal tanks.)
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Old 01-23-2012, 08:23 AM   #12
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RE: Tank Level monitors

Here is my set up poly tank 45 Gal

*

*
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Old 01-23-2012, 10:27 AM   #13
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RE: Tank Level monitors

Does anyone know of a similar (exterior) system that will work on metal tanks?
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Old 01-23-2012, 12:08 PM   #14
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RE: Tank Level monitors

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Does anyone know of a similar (exterior) system that will work on metal tanks?
*I can't think of one!
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Old 01-23-2012, 02:26 PM   #15
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Tank Level monitors

Globius will work on stainless steel tanks , but not sure about mild steel.
Best to check on their web site and from there ask the question.


-- Edited by Tidahapah on Monday 23rd of January 2012 03:27:18 PM
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Old 01-23-2012, 02:46 PM   #16
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RE: Tank Level monitors

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Globius will work on stainless steel tanks , but not sure about mild steel.
Best to check on their web site and from there ask the question.



-- Edited by Tidahapah on Monday 23rd of January 2012 03:27:18 PM
*Thanks for the info on Gobius... I just checked their website and they do work on stainless steel (we have a 100 gallon tank) and Defender sells it in the US for $329.99.... probably a lot cheaper than trying to change out the tank!
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Old 01-24-2012, 06:56 AM   #17
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RE: Tank Level monitors

www.thetanktender.com/about.htm

No electric , easy to clean.

Fuel, water , waste , but not cheap.
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Old 01-24-2012, 09:40 AM   #18
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RE: Tank Level monitors

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FF wrote:
www.thetanktender.com/about.htm

No electric , easy to clean.

Fuel, water , waste , but not cheap.
* * * ** Not a good application for monitoring a "Waste Tank "

******* They are fine (actually great!) for water & fuel tanks but terrible for waste.
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Old 01-24-2012, 09:49 AM   #19
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RE: Tank Level monitors

I wondered about the installation 'tank tender' for waste tanks.... and thought there might be the potential for a few problems.... although as mentioned it could be the perfect solution for water or fuel.

I think that the external systems with no drilling etc are probably a better fit for us and Gobius seems to be the solution for our stainless steel tank.
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Old 01-24-2012, 04:30 PM   #20
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Tank Level monitors

Haven't talked about my tankage monitors for awhile, some might remember older posts.

Anyway, as soon as a tank monitor fails, it is removed and a sounding port is installed (except for waste).* So, I have a sounding port in each fuel and water tank.*

With the SS water tank, I have a plastic tube*with markings that is inserted in the tank, put your thumb over the tube, and view the fluid level and the nearest mark.

With the mild steel fuel tanks, I insert a tape measure and compare the inches of fuel to known quantities remaining.

With the plastic waste tank, I put a flashlight face down on the top of the tank and view the fluid level.

All of this is inexpensive, relatively accurate, relatively fail-free, maintenance free and simple.*

The biggest downside, is that it requires you to get on your knees every week or so.


-- Edited by Jay N on Tuesday 24th of January 2012 05:31:01 PM
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