Sight Gauge Tubing

[Dick B in KY]

What are you using for sight gauge tubing? My Tygon tubing has become cloudy and discolored to the point of being hard to read. My fuel is 93 octane auto fuel ( non ethanol), up to this point.

Dick B

[cap01]

ive replaced mine with more tygon c-210-a . this has lasted a several years , has changed a little but still good . ill will replace it when it gets bad again . i use only non alc gas . there is probably a better tubing out there , i don't know what it is .

[Dave S]

Dick,

Chuck hints at an issue with "Tygon"...the name is simply a brand name; and there are many, many versions of tygon - literally hundreds.....the stuff is primarily used in laboratory applications and it is made in many types - resistant to specific chemicals, pressure, temperatures, etc. Some of it is reinforced.

I simply ordered new stuff from Kitfox when it yellowed out - I figure it will simply get replaced every few years - not very expensive in any case.

Dave S

[kitfox2009]

I got stuff from a local small engine repair shop. Yellow on one tank and blue on the other just to see which is easier to read. So far yellow wins out! I use "marked" non-ethanol off road (boat) premium fuel.
Don

[Dorsal]

Anybody know the tubing size off the top of their head? I need to replace mine (again) but that info is up at the hangar.

[cap01]

checked my notes and I'm using tygothane c-2101a 1/4 in. ID. this stuff still gets discolored. every few years I replace the tubing when I do the condition check.

[Dorsal]

Thanks Chuck, I have the same experience with the stuff, fortunately replacing it is not difficult.

[kmach]

sources for this tygon c-210 ?

[Paul Z]

I have been replacing mine every year at the Annual Inspection. I have found it yellows really bad when using auto fuel or MoGas, I quit using auto fuel or MoGas after an issue with it stripping either mold release or epoxy out of my tanks. I sloshed and started using 100LL exclusively. Since I started using 100LL, they don't yellow as fast. I replaced with tygon c-210 sight gauges from John. I went and looked at it on e-Bay, and I also ordered a 50 foot piece of tygon c-210 off of e-bay. Now I have already cut and installed the copper wire & slosh restrictors in and ready for next year. I've got enough for the rest of my life.

[dholly]

My SLSA manufacturer recently changed requirement for wing tank sight tube replacement from Tygon C-210-A to Tygon LP-1500. It is compatible with E-10 ethanol blend fuel.