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I filled my nearly 30 year old 1995 Hot Springs Grandee late this year. Got it filled just before the freezing weather hit. I've had it running for maybe a week now and I've noticed the wet ends of both jet pumps are leaking out the back (I suspect bearing seals have worn out). On one of the...

I'm looking at ordering a new cover for my hot tub and I notice that some of the vendors up here offer an alternative to the standard marine grade vinyl material that I'm used to using. One vendor calls it Weatherguard but the others I've looked at call it Atlantis and one vendor I've looked at...

The 25 year old control system on my '95 Hot Spring Grandee has finally failed. The PWA Interlock timer board appears to have died. Being so old it's NLA (of course) and 100% pure fresh-squeezed unobtainium. :( I had a used late 1990s IQ2000 control system as a backup for that eventuality. I...

This is a challenge for the electrical engineers and techs who can look at a schematic and understand how a circuit works. I'm an engineer myself but not an EE and my understanding of circuit diagrams and how circuits work is only basic and I need the help of someone who has more expertise in...

My '95 Hot Spring Grandee uses 6 of these 30A Potter & Brumfield T92S7D22-12 General Purpose DPST NO relays for controlling just about everything in the tub. Here's a picture of one. They work great and last forever for running the circ pump, the jet pumps, etc. but running the heater is hard...

Something weird is going on with my free chlorine testing. I've added more than enough 10.3% chlorine to bring my hot tub water to at least 6 ppm FC yet when I add the 2 dippers of DPD powder to the sample, it only slowly turns faint pink and according to the test, my FC level is only at about 1...

The Balboa board in my friend's Beachcomber hot tub suffered a failure. Looks like a wire and a bridge going into a relay fried. Is this worth trying to repair or should we just look at replacing it if the board is still available? Any ideas as to what could have caused this?

I have a Taylor test kit. Not sure what number any more as the part of the label where the test kit number is printed is faded and unreadable. The TA test has three reagents. CR-007, 008 and 009. For every drop of 009 you ad to turn the mixture from green to pink is 10 ppm TA as CaCO3. When I...

I had my '95 Hot Spring Grandee drained over the summer, just gave it a cleaning and filled it up for the fall and winter. After filling, I flipped the 20W breaker on to fire up the circ pump. After circulating for awhile I noticed there was an air bubble in the hose between the circ pump and...

I've just finished installing a low budget DIY WiFi controlled Chlorine injection system I put together so I can pump a known quantity of liquid chlorine bleach into my hot tub water and cycle my jet pumps with my cell phone from anywhere I have a cell phone data connection or a WiFi connection...

I just re-started my tub after having it drained most of the summer. I got my TA down to 60, set Borate level at 40. and pH at 7.5. A few days after startup my pH had drifted down to 7.2 maybe in part due to the fact that I am chlorinating exclusively with dichlor until I get the CYA level up to...

This is a cautionary tale for anyone who buys or is about to buy a replacement hot tub cover and it provides useful information to all hot tub owners. I just received my new Deluxe cover for my '95 Hot Spring Grandee. It has a 5" x 3" taper, 12 mil vapor barrier (2 separate 6 mil wraps) and a...

I need a little help with wiring in an accessory into my 1995 Hot Spring Grandee. The wiring diagram/schematic for the tub is below. I'm going to install a system that will alow me to inject chlorine into the circ pump line via a wifi controlled switch which I can control remotely. After the...

I have a '95 Hotspring Grandee with the standard Watkins white textured acrylic shell. I got it used and this last winter/spring was my first season with it, Over that first season, it developed a light orange to yellowy orange stain in a very small localized area abpve the waterline. The area...

I've just discovered a small hairline crack in the (Endurol?) shell of my 1995 Hot Spring Grandee. It's only about an inch long and located on the vertical wall just below the top of the cooling bench where you step onto getting into and out of the tub (see photo). The crack maybe small right...

I have a 1995 Hot Spring Grandee that has the original Series 1 5.5 KW No-Fault heater in it. I recently replaced the temp sensor and hi-temp limit thermistors and the heater relay. The tub has been running flawlessly for these last few months since I did that work and started it up. Recently...

I'm in the market for a new hot tub cover so I've been talking to a few of the Canadian mail order companies asking questions about various technical details about their various upgrade package. When I was chatting with a young lady sales rep at theCoverGuy in Burlington, ON, I asked her about...

Let's say I want to keep the FC level my 500 US gallon spa in the 4 - 6 ppm range when I'm away for a number of days and my CYA level is in the 30 - 40 range. In this scenario, the spa will be covered the whole time (no sunlight) and no one will be bathing in it. The circulation pump will be...

As many of you know by now, I took over ownership of a 1995 Hot Spring Grandee which I have nursed back into working order. I was hurrying to get the tub operational before winter set in here so I didn't have time to flush the tub with Ahh-some before I filled it and started it up. Everytime I...

Since learning how SWCGs work I've become curious about the economics of retrofitting hot tubs with such a system and what systems are available that are appropriately sized for hot tubs. So far my investigations have only lead me to find drape over systems, some of which claim to be "smart"...

I've been doing the TFP chlorine spa startup method for the past week. Over the last 5 or 6 days I've been maintaing my FC levels at about 6.0 by testing and adding small amounts of dichlor each day and keeping track of the number of grams of dichlor that I've added. Today, I added the last 8...

While looking at something else spa/pool related on eBay I came across this in the "More from this Seller" part of the eBay ad: https://www.ebay.com/itm/Magnetic-Pool-Spa-Water-Conditioner-Magnetizer/111130398697 For $140 USD plus shipping it's just a pair of large magnets that you clamp onto...

Ntro's article on how to use chlorine in a spa/hot tub (https://www.troublefreepool.com/threads/9670-How-do-I-use-Chlorine-in-my-Spa-(or-pool)) recommends starting up the sanitizer phase by adding dichlor for the first several days until you've got your CYA levels to your target level and then...

I did a CYA test for the first time today using my Taylor K-2005C test kit. The embossed scale for the test is on the outside of the small comparator tube and on my comparator it's in a location that's EXTREMELY hard to see. My 50+ year old eyes have lost a step or two but I'm not blind by any...

Okay, I've just done a startup following the TFP method on my '95 Grandee (500 US gallons). I got the TA dialed in at 50, the pH at 7.5 and I've been adding dichlor over the last few days to get the FC up into acceptable ranges and steadily build up the CYA level towards the 30 - 40 ppm range...

After going through all the trials I endured getting a used spa's temperature control system to work properly, I finally got around to starting up the chemical system. I got a Taylor K-2006 test kit so had what I needed to assess my initial water conditions which were TA ~125 ppm, CH ~150 ppm...

I've been working on bringing a 1995 Watkins Hot Spring Grandee back to life for the last several weeks. I've worked through a number of problems and had a number of setbacks but I'm getting close to having an operational hot tub. I just filled it a couple of days ago and had a number of...

I have an old 90s vintage Watkins tub with two jet pumps. Both jet pump wet ends have 1/4" nipples on the bottom that are there to drain the wet end into a drain line. There's a 1/4" hose on those nipples which I assume just connect into the main drain line. I totally see the purpose is to make...

I have a 1995 Hot Spring Grandee. It uses 5 cartridge filters. It was originally designed to use the paper filters; the Tri-X ceramic filters hadn't been invented yet. I want to run Tri-X in this tub but Hot Spring recommends that you leave a paper filter on the one standpipe that services the...

I have a set of Hot Springs ceramic Tri-x hot tub filters that were left out in the elements for quite a while and that are quite dirty with a lot of dirt embedded in the pores. I tried soaking them in a bathtub with a bunch of TSP and some Muriatic acid added for 24 hours but it hasn't had much...