Altering water level prpbes

[RichardP]

I'm replacing the internal 100l water tank in my Swift Moho with a smaller underslung CAK tank. The Sergeant probe has 4 rods and the longest one (about 30cm) will be too long for the new tank. Is it possible either just to clip the end off it or bend it so it'll fit.
It was never particularly accurate anyway so if it works at all that's a win.
Reason for the change is that there's b** all in the way of storage in the Swift and the space taken up by the internal tank will allow us to pack for longer than a weekend

 

[shortcircuit]

The lenght of the probe is not critacal other than in reation to the other probes so it can be shortened but still longer than its nearst neighbour.

 

[RichardP]

Thanks - I'll get the clippers out

 

[maingate]

Why not just put a spacer between the top of the tank and the probe? It should be easy to work out what size spacer to use.

 

[wildebus]

Why not just put a spacer between the top of the tank and the probe? It should be easy to work out what size spacer to use.

Too long, not too short
Unless you mean on the outside of the tank? In which case I think the floor of the van might just be in the way?

 

[r4dent]

I'm replacing the internal 100l tank, the space taken up by the internal tank will allow us to pack for longer than a weekend

100l is about 2' x 2' x 1' not a significant storage gain.


Would you not be better off with a rear carrier or just a declutter?

 

[merl]

I'm replacing the internal 100l water tank in my Swift Moho with a smaller underslung CAK tank. The Sergeant probe has 4 rods and the longest one (about 30cm) will be too long for the new tank. Is it possible either just to clip the end off it or bend it so it'll fit.
It was never particularly accurate anyway so if it works at all that's a win.
Reason for the change is that there's b** all in the way of storage in the Swift and the space taken up by the internal tank will allow us to pack for longer than a weekend

The rods are simply water level probes with the tips defining the various levels. If you shorten the longest one so it ends an inch or so above bottom or an inch or so above the outlet if that's on the side wall, then cut the shortest one so ithe tip ends approx 1/4 of the way down. Then trim the other 2 so they equally space between the long and short rods you'll then get a nicely spaced indication of water level with a smallish reserve.
Unit you park on an slope of course

 

[RichardP]

100l is about 2' x 2' x 1' not a significant storage gain.


Would you not be better off with a rear carrier or just a declutter?

I think mohos are designed by people who never actually use them - the latest versions have underslung tanks and hopefully somewhere to store your smalls

 

[1 Cup]

Is it not done by holms law. Its a frequency not a flotation

If it is flotation wouldn't you need to cut the top of the pipe not bottom

 

[AndyWill64]

Is it not done by holms law.

Elementary, my dear Watson

 

[1 Cup]

Elementary, my dear Watson

That helped his progress. Lol. Comments are welcomed . But ideally, we need ideas.

 

[r4dent]

The Sergeant probe has 4 rods and the longest one (about 30cm) will be too long for the new tank. Is it possible either just to clip the end off it or bend it so it'll fit.

I think this video explains how the gauge works. (at 1 minute)
My understanding is that you can change the length of any tube but the longest one now must be the longest when you finish cutting.

 

[RichardP]

I think this video explains how the gauge works. (at 1 minute)
My understanding is that you can change the length of any tube but the longest one now must be the longest when you finish cutting.

Well that was very informative and has set me on the right track. Thanks

 

[merl]

Is it not done by holms law. Its a frequency not a flotation

If it is flotation wouldn't you need to cut the top of the pipe not bottom

Not frequency or flotation Jeff. It's checking for water level by passing a tiny current through the tank water via the probes. The bottom probe is 'common' and it's looking for continuity (via the water) to any of the other 3 probes.
Continuity to no probes means it's empty/ reserve.
Continuity to probe 1 ONLY means 1/4 + full.
Continuity to probe 2 1/2 full etc.
Continuity to probe 3 3/4 full or more.

 

[merl]

My understanding is that you can change the length of any tube

Best not to think of the probes as 'tubes' they are actually wires.

 

[r4dent]

Best not to think of the probes as 'tubes' they are actually wires.

I don't think "wires" is correct either.
OED definition of wire "metal formed into a long, slender, flexible rod or strand, usually circular in section"
The probes are not flexible.

Can we agree to call the probes "Probes" ?

 

[merl]

The probes are not flexible

Depends on how hard you try and bend em .
Boeing 747 wing, flexible or rigid? Discuss.
There was doubt over exactly what the purpose of the 'rods' was so just pointing out that although they may be circular and are semi submerged they don't carry water and don't activate the measurement mechanism by hydraulics so shouldn't be viewed as tubes. They carry current not water and are electrical conductors (akin to a wire) and yes, they're definitely probes
Next time you're on the OED, look up pedantic

 

[r4dent]

There was doubt over exactly what the purpose of the 'rods'

Watch the video (at 1min) it explains exactly what the rods/tubes/probes/wires are for. This is no doubt.

 

[1 Cup]

Yer the longer they are at the different level shows up.. cerbox dose it phawth.I just got a transparent tank and put a light on the other side so my cold water glows.
My gray tanks has never backed up to the shower. But I've got a pop up waste. Lol

 

[merl]

Watch the video (at 1min) it explains exactly what the rods/tubes/probes/wires are for. This is no doubt.

I don't need to watch because ( as you'll see if you look back to post 7 I explained how the sensor setup worked and how to trim the sensors to length, basically I personally had/ have no doubt.
1 cup posted
"Is it not done by holms law. Its a frequency not a flotation". This is my reference to doubt and my reply to his question.