Jacuzzi J-315 Looses Water

[beby48]

I have just purchased a used, but in great condition Jacuzzi J-315. We have it up and running and really like it. The tub looses about 1 to 1 1/2 inches of water every day if we use it or not. We have have the tub sitting on a patio made of patio blocks and I can see some wetness in one corner. I have removed the front panel, where the pump and controls are and see no leaks there. I do see some water in the base pan of the tub.

Does anyone know if there is a typical place this tub would have a slow leak? Does the base pan cover the whole bottom? It appears that the foam insulation covers the pipes and may make this leak hard to find.

Any suggestions?

Thanks

Bill