Galileo 799- water level dropping to below the jets even if topped

[rrcp]

I bought the house with the Galileo.  I have notices that the water level continues to drop below the Jets despite filling up the tub. I fill the tub about every week with about 3 -4 buckets.  What do I do?  By any chance is there a manual for this model that someone can scan for me, dearly appreciated.

[Dr. Spa™ Ret.]

Need to know the brand (possibly Sunrise Spas?) and the year of manufacture...though, the manual will be of absolutely no help for anything concerning leaks or repairs of any type.

[Vinny]

Look to see where a wet spot is; open up that side and start there. Stick your finger in the foam and see which way the wetness goes. Troubleshooting a tub in the winter could be tough ... I would wait for springtime and then turn the tub off and see where the water drops to. It may be possible that the water stops dropping at a certain level and you'll know that the problem can't be lower then the water line, that makes it much easier to start somewhere.

[castletonia]

Its a Sunrise. 

If its a newer one, then it has the Roxul bagged insulation so finding a leak should be pretty easy since once you remove the sides and the insulation, the plumbing is exposed.

I will see if I can come up with a manual, but it will likely be Monday.