Is there any sort of time release chlorine that can be used while i'm on vacation? Last time I left I was not able to chlorinate for the week I was away and water got very cloudy? Thanks

cloudiness isn't from lack of chloring, but rather lack of or poor filtration. Chlorine just ensures the water is sanitized. Be sure to clean your filter before going on vacation, keep the tub running (but turn down the t-stat, save a little on power) and you can get a floating chlorine dispenser and just set it to a low setting and float in the spa.

What kinda chlorine? you mean like the pool tabs? I thought they were a no no in the tub? Thanks Again, Charger!

the thing about pool chlorine is that it has a lot of inert fillers that can offset your ph balance. What I do when I am away for a while is use the pool floaters with the 1" chlorine tabs. I can adjust the ph when I return. It's a small price to pay for water that isn't contaminated.