Regarding buying the 2-piece lens, you need to find a Hot Springs dealer in your area.
If you can't, you can try to contact Olympic Hot Tubs in Seattle, WA - (
http://www.olympichottub.com )
Phone (outside Western WA): (206) 286-0700.
I found the "special" epoxy glue online, and ordered it. (Manufacturer = Devcon, Product Name = Plastic Welder - Details are below).
The GlueDepot.com requires a minimum 2 CASE !! purchase to get the mixing-nozzle dispenser, which fits into a regular caulk gun. When I contacted Olympic Hot Tubs to buy the light, they were out of the "Plastic Welder", but they referred me to their glue supplier in Seattle. I bought plenty of the glue from them, and got the dispenser and some extra mixing nozzles for a few dollars more.
You can probably find it locally as well, with some detective work. Try finding a local Hot Springs Spa authorized dealer for advice.
(Note: they sell service by the hour, so they won't talk you through doing the job yourself, but if you buy the lens replacement from them, they'll probably help you find the Plastic-Welder glue.
I got the plastic welder shipped from TheGlueDepot, but it arrived after I had finished the job. (Now I'm ready for anything plastic to break!)
NOTE: The lens kit is actually 2 pieces - the actual lens piece threads into the base piece. Be sure they are tightly threaded together before you glue them to your tub: you don't want to have to try to tighten them up later, working against your new glue-seal...
It sound like you already have your old one out: my tub has the "bumpy" textured surface, so the lens actually sits in a slightly recessed circle. (See my pictures in the topic on this forum.) That meant I couldn't just use a chisel as suggested to remove the old lens. The lens replacement kit from Olympic Hot Tubs came with an instruction sheet that covers that, and it meant I got to buy myself a new Dremel tool and cutting discs. That also helped a lot with cleaning the old epoxy off & resurfacing the backside.
I saved my photos & notes as a Word document, and emailed it to myself for just this occasion.
I tried to email it to you through this forum, but it won't go through. If you want me to send it to you, send your email address to me at my email:
zafereo@yahoo.com.
PS - MY SINCERE THANKS GOES OUT TO Dan.the.spa.man FOR GUIDING ME THROUGH MY LENS ADVENTURE !!!
My tub was back up quickly, and my shore leave was awesome because of it. Now we're back diving Alvin in the North Pacific, and I'd give my left arm to be able to soak in the tub every morning. ( The water temp here is 49, and my 7mm wetsuit only does so much !)
Merchant : THEGLUEDEPOT.COM
Date/Time : 09-Mar-2008 10:51:15 AM
Transaction ID : 1759131968
========= ORDER INFORMATION =========
Invoice Number : 1990
Description : PLASTIC WELDER in the 50 ml auto mix dispenser. One Of the
Most Versatile And Strongest Plastic Adhesives Made. Requires application
gun and mixing nozzles for auto mix. Free Gun With Two Case Purchase.
Total : 28.65 (USD) (2 tubes of the Plastic-Welder epoxy glue).