Welcome to our forum.
I have my Caldera Moorea for just over 2 months now. The 1st month and a half my water was great, no problems being a spa newbie. I use Diclor about 1 and a 1/2 tsp and toss in 1 tbs of mps after each use. The spa is used probably 5 times a week. I do shock with mps once a week and add clarifier and oil eater once a week.
You say you use dichlor but don't mention frequency but then say you add MPS per use (which is never effective IMO) so I think I know what you're doing and it never wroks as well unless you are an occasional soaker. The key is to add dichlor after each use (1 generous teaspoon per person when exiting) and then shock once per week with MPS. If you do this I think you'll get the results you're looking for. If it continues PM me as I'm always willing to help out a Central NYer, being an ex-Utica man myself.
Hey, I'm a South Utica boy now living in "The Mills" (New York Mills)! I add dichlor (1 1/2 tsp) daily and add 1 tbs of MPS after each soak as per my dealer. IIf I plan on soaking I put both in a vial and toss in in when I get out with the clean cycle running.
What you're doing should give you better results than you are seeing but its still not the best way IMO. You're better off adding the dichlor after use, not earlier in the day. The dichlor is needed most just after your use and dissipates quickly so by adding it as you exit you're spiking the spa with chlorine just when its needed most. I'd save the MPS for the weekly shock.Hmm, I'm a Spartan and most of my family is still in New Hartford (and Whitesboro) so maybe I'll send them over for an intervention!