Weld-On 747 PVC Cement | 118 ml spa boy How to use it: Always

How to use it: Always pair with PVC Primer — primer cleans and softens the PVC surface so the cement creates a chemical weld rather than just a glue bond

find the marked pump fuse holder (often labelled "PUMP1" or "PUMP2")

so each person can set the pillow where their neck actually is rather than where the factory guessed

Salt water spas (Onzen

clean the seating threads

Weld-On 747 PVC Cement | 118 ml spa boy How to use it: AlwaysWeld On 747 Pool & Spa Cement (1 4 pint, blue) is the standard PVC plumbing cement for hot tub and spa repairs. It's the blue formula cement specifically rated for use under continuous water pressure and elevated temperature the conditions inside spa plumbing that destroy the cheaper grey "general PVC" cement you'd use on a residential drain pipe. When you'll need this: Use Weld On 747 for any PVC plumbing repair inside the spa equipment bay cracked