So I'll be running a DWC solo bucket from CC.

I want the bucket to stay as clean as possible and have no residue

I was going to run Hydroguard, but it's $30 for a quart

Is there a cheaper alternative that doesn't gunk things up?

I like hydroguard because it's a super clean, clear solution

I have Great White and love it and used it for years, but again I don't want to gunk up the DWC anymore. I know Orca exists, but again, I think it gunks things up compared to hydroguard

I know a lot of times there are powder alternatives that are much cheaper than something like Hydroguard.

Any suggestions on a residue free alternative?