Last month we purchased this house that has an indoor pool and an outdoor spa. Pool seems to be going okay, but the spa is causing nothing but headaches.
It's a Sundance Marin. I'm not sure when it was purchased, but it was probably a little more than five years ago or so if I had to estimate. The interior head pads and the exterior have some age-related deterioration.
When we got the house, the spa water had a funny smell. It's treated with BaquaSpa, so after confirming with a local pool guy that it's not supposed to have a funny smell we drained it, my wife cleaned the interior with the cleaning kit, and we refilled it. We added the chemicals as recommended and things were okay for a couple weeks.
We took a water sample into the local pool place (the place was recommended by the previous owners and has serviced the spa and pool for them). The guy there told us we were lacking in alkalinity and hardness, and told us to add I think two pounds of the alkalinity increaser and the hardness increaser. I did so. Things seemed okay.
We didn't use it for a bit of time, but about a week or so later we got in and there was a white particulate stuck to all of the interior of the shell, resulting in a fairly unpleasant experience. I talked to the pool guy about it and he said it might be dirt or something, and I should just ignore it and keep the chemical levels normal and it would go away. It has not gone away. More recently, the pump has started showing a FLO error, which doesn't seem to affect the runnings but it certainly concerns me. More recently, about a week ago, the power started shutting off without explanation. The only way I could get it back on was to remove the fuses (apparently most of these should have a switch on the box that the fuses are in but ours doesn't; just the fuses) and put them back in. That starts it up and it runs okay, but if I come back tomorrow it's off again. This past weekend I camped out to see it at the moment the power cut, and then turned it back on immediately. It showed an OH error, which I believe is overheat.
I talked to the pool expert again and he told me it's time to shop for a new spa because the expense in labor and materials makes it not worth fixing. I'm looking for a second opinion.
#1: How should I be solving this particulate problem?
#2: Are the three issues related?
#3: Is the pump fixable?
#4: Is my pool expert dependable?
Any help would be appreciated, and if you need any additional information please let me know.