The tub comes up nice and clean after mixed?

I mix 2 and a half cups into a 5 gal pail in one shot give it a stir with a spoon and after 20 min the water is crystal clear no residue in the pail ever.

Nothing scummy happening over here. It's working well for us. We are just careful to mix the IO buckets well before using it. Do you think it could be a buildup from not rinsing out the mixing containers between uses?

Are you using RO water? What temp is the water when you add salt?

Ro/Di and no heater when mixing.

Hi Kevin,
I've used IO for over 11 years now.
Always mix in either 5 gal bucket with either city of Edmonton water, Primed, (when I was still living in the city), or with RO water, not heated.

I don't wait pver night like most of you. I usually just mix really well, wait until water is clear, then using a smaller bucket, scoop and toss back in a few time to mix really well.

Then I use directly. No heating...the RO water is stored in 5 gal water jugs that bottled water comes in, so the water is not exactly very cold.

After water-change, I use a towel to wipe the buckets dry before storing until next use.

The only time that I get that cruddy-calcium-like deposits on the sides of the bucket is when I had some left over salt water made, and was storing it for a week or so...
Hope this helps.
Lenny.

do you roll your salt bucket before u use it? the different ingredients in the salt mixture are different sizes and can sepaerate during shipping (vibrations) ... test the water and see if there is an abundance of Ca or alk or MG that is causing the precip