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My suggestion is go to an online seller of spa parts and replace the pac complete with heater if your financial circumstances perm It has been my limited experience that once a board has corrosion it's going to be nothing but problems. If you're handy at this sort of thing, replacing the whole pac should be nothing but a bolt-on and plug/unplug experience. (maybe requiring some well done splices) If you replace the whole pac, heater, and controls then all you have left is pumps, plumbing and shell that can leak or need to be replaced. The rates that pros have to charge today to stay in business are such that you would likely be ahead of the game instead of fixing one problem at a time. Spas are one of the most horrible operating conditions you can have. Electronics, moisture, pumps, etc, I would worry about that much corrosion inside the spa. Mine is twenty years old and I've never had that much corrosion and I've replaced the pacs rhree times. Did they need it every time? Dunno, but heaters go, controls go, I was happier getting out with a new pac than having multiple issues. Edited to add: I am an overkill kind of guy that hates recurring issues. Hope you find an excellent solution to your concerns.

20 year old Hydrospa, they went out of business in 2007. I'm remembering something to the effect that the lifetime of an acrylic shell is 20 years. I like the spa a lot and am in it just about every day. Is there a good way to prolong the life of the shell? such as an overlay type of acrylic patch? There a discoloration about one sq inch or so with several other smaller ones nearby. circled in red on the attached pic

Easy to build, positioned next to where the steps inside the tub are. Roughly five years old, wish I had done it fifteen years earlier. No plans needed. Adapt to your personal situation.

I believe that wet testing is important. Also, getting the right dealer is key. I have had my Hydra-Spa for nineteen years. Still going strong, no leaks. However, wet pumps have been replaced three times, air pump once, control box and heater 3 times. All of these parts were ordered on-line, and replaced by me. Probably could have done it for less, but the local spa repair guys charges over $100 an hour, and for $400 or so I can change out the control pac with heater. Seems like a no-brainer to me. Do remember that you may need access to panels to change out parts. Also, I would have a newer spa, but the one I canceled recently required a crane to put into place, the dealer wouldn't pay for the crane so I bailed. Twenty years later, I really like the spa I have, my wife loves it, we use it five or more days a week. I got interested in salt systems, but the way people on the forum are posting about them I may well have dodged a bullet. It will require maintenance. Mine is outside. Spending higher dollars for a "best" cover works better for me than cheaper covers. I think mine is 5" in the center, sloping to 3" at the sides. Take your best shot. Hope it works out for you as well as it has for me and Cusser. I'm hoping to get another ten years out of the spa, maybe more. Do consider that you will have to perform maintenance

Disclaimer I am not an electrician or a certified repairman. However, If visual inspection of both elements shows them to be identical in every way, I would carefully give it a try. If I remember correctly ( and memory fails me more and more) A 240 volt element running on 120 gives 1/4th the power it would on 240 At 120 volts it should be the same as if one leg of the 240 was out. Caveat, while it's hard for me to say it won't cause any damage to your system, I don't think so but don't really know. Having said that, if it were mine, I would give it a shot. Please post back and let us know how things went. Ken

Thank you for your informative responses. It looks like I am doing pretty well with the spa that I have. My wife takes care of the water, we use bromine for sanitation. We also use one of the liquid kits for testing instead of the strips. My spa originally came with Ozone/UV, and when the ozone generator died, I didn't replace because we couldn't tell that much difference with it. It did not operate all of the time We have had no odor or skin problems with just the bromine. We use the spa pretty heavily but always shower off before going into the spa, and then a good rinse off after we get out. I have noticed that some guests seem to find it a hassle to rinse off before getting in and will often opt out when we say a quick rinse off before getting in is a requirement. A master bathroom door opens onto the private deck where the spa is. Makes it very convenient to use. We absolutely love the usage we have so I will continue replacing parts until they are no longer available. As I get older, and not as agile, my wife is a sharp cookie and can usually make it into places I cannot. She has taken care of several close fitting situations successfully for me. I'm about 5' 11" now, was taller but have shrunk. My wife was 5' 0" so is probably a bit shorter now. The old saying is "if it ain't broke don't fix it!" I shall take that to heart and keep on keeping on as best we can. Thank you so much for taking the time to make such useful and informative replies!

Hello I'm trying to figure out what sort of hot tub I might replace my 2000 HydraSpa with. The HydraSpa is still working beautifully, is on city water. They didn't have salt systems in those days. This is a supposedly five person spa that maxs out at three people. Over the years, I have replaced every water pump three times, the air pump once, am on the third control panel and heater. I'm handy and have a working knowledge of electrical codes, did most of the repairs myself. I plan to continue utilizing this spa until it becomes impractical to do so. At nineteen years in Service, that day may come sooner than I would like. My wife and I are in the spa five or more days every week. It remains one of the best purchases I have ever made. So, in twenty years I figure there are a number of technological developments. We now have "salt water" systems. Waterfalls are nice, but I could easily live without that and lights. I'm seventy three now, and not as agile as I used to be, and uncertain how many years I will continue to be able to work on the system. In scanning this forum, I have seen where some posters state " they float out of the lounge seat" or otherwise have usage problems with a current model. Since that has never happened to us, I wonder why that happens to some and want to be knowledgeable about current models. Note: although it is not as pretty as the current models, the old hydraspa has had several pumps replace with higher horsepower and really does a super job of massage and relaxation. my wife and I often are in the spa to where it shuts off on timer (20 minutes) so we don't keep it super hot because we want to stay in it a while. The current spa sits on a 13" x 9' deck over ten feet up. The HydraSpa is 76 x 80" and perfect for two people. Anything larger will take a crane to put up on the deck, which I would like to avoid if possible. Question: what benefits or disadvantages do you think a salt system would offer over standard freshwater? Question: what sort of spa do you think we might do as well or better with? I feel somewhat like an old reprobate that doesn't want change, but in all honesty I am more concerned about decreasing massaging ability and enjoyment than other areas. Any thoughts you have will be appreciated.