Spa leaking

[Bigdog43]

I have an artesian spa - tropic seas waikiki 864l. This is a stock photo I found, but wanted to try to show where the leak is. Neither the circ pump or the two pumps I can access from this side are the culprit. If you're looking at the side with all the equipment, it is on the side to the right. This side has the step to enter the spa as well as the filters. Trouble is the previous owner built my deck around it in such a way that made access to this side of the hot tub very difficult (they probably thought there was no equipment over there). I for sure cannot get the siding off, but could cut into it. The pump that runs my waterfall I believe is over there and can see it actively leaking when that pump is running. Any tips on the best way to cut into it and/or how do I avoid cutting into something important? I really wish i had a diagram like this, but for that side.

 

[Mdragger88]

I know you probably don’t want to but can you remove parts of the deck to gain access? Can you show some actual pics of your spa & the area you are talking about along with the deck?
Meanwhile, I will send out the bat signal ….
@RDspaguy

 

[Bigdog43]

I will take some pics when i get home from work. I contemplated hard on starting to the take the deck apart. I still might remove a few boards to gain easier access but there is a bigger issue. Problem is one of the main beams runs right against this side of the hot tub and I'd literally have to take my whole deck apart to take out that beam so its not really an option. I unplugged that pump from power and it has stopped the bleeding some, but I'm sure it is still leaking a little.

 

[RDspaguy]

Can you pull the spa out/away from the deck?
Sometimes builders will leave joists loose in the joist hangers so they can be easily removed. Check for removeable sections.
Cutting a side is a last-ditch effort, but I use a circular saw set at about 1/2" depth. If the leak is high (at the waterfall) you will need a better solution as you will be unable to reach it even after cutting.