Recommendations for a Liquidator flow indicator?

[pjt]

Anyone have luck finding a quality flow indicator (tubing is 1/4 ID and 3/8 OD) for the Liquidator? The one included leaked air (and so did its replacement). I don't have one installed right now, but it would be nice to have one to fine tune the output from the Liquidator.

 

[cfherrman]

A removable mark on the chemical jug, you won't find anything better

 

[laprjns]

Within the first season or so mine leaked and then finally cracked after over tightening the adapter. I believe the root cause is that there is a mismatch between the threads on the flow indicator and the adapters provided. I never replaced mine. Although it is a nice indicator for minor flow adjustments, I found that having a needle valve makes the flow indicator unnecessary.
After six season using the Liquidator, I will be switching to a SWCG this season. reading the manual it looks as though the method to dial in the SWCG is the same as the Liquidator. You set the the pump run time and the SWCG output percentage, and over the course of the few days make adjustment to the SWCG output percentage to dial in the chlorine level.