Hi Ihave a 93 cal spa that I was give the guy that I recieved it from power washed all of the foam off of the tub.I baught a new spa pack and pump from spa guts and plan to put it on soon.I have three questions ? 1). on the back of the spa there are 2 or 3 u shaped plumbing fittings and a lot of pvc flex does any one know what these are and if I need them My plans were to remove this flex and replace it wiyh hard pvc. 2)what is the hard white stuff around all the jets on the out side of the tubI was going to replace a few jets but wanted to know how to remove this stuff it appears to be a hard glue. 3). do i need to spray the shell with foam or while 1" foam board be ok around the skirt I live in south carolina. If I need to spray it where can you get foam in largere quanites the cans of great stuff. Thanks Robert 101_0471.jpg 101_0470.jpg