SpaGuy, your fab YouTube on how you diagnosed and fixed the MotoMassage leak is what I needed to see. However, it's waaaay too cold in VT to go digging into the side, and my dealer refuses to touch it because it's over 10 years old ('they get brittle and moving them tends to break stuff'), so it's not like I can hire my local spa guy to come get it, take it to the shop, etc.
When you showed the outflow drain at the bottom of the MotoMassager, you mentioned in passing that you could just plug that up instead of doing the full fix. 26:43 in the video. That's what I'd like to try, at least until summer comes.
Here's my question: what do suggest I use to plug that drain?