There are hairline cracks on the lip of the spa
How old is unit?The older the spa, the more likely that some type of outside damage initiated
the cracks.
Sunlight, freezing temperatures, and harsh chemicals are just a few of the
common causes.
Repair cracks using acrylic repair procedures.
Is the spa kept covered when not in use?This will help prevent some of the causes.
Provide a good cover to help prevent further damage and repair cracks using
acrylic repair procedures
What do the chemicals read?Harsh chemicals and chemical abuse (especially low pH) are one of the
biggest causes of cracking of acrylic. Repair cracks using acrylic repair
procedures.
Has there been a history of chemical abuse?There will always be other evidence of chemical abuse.
Check for the bottom of the cover deteriorated or the jets will be bleached or
the pillows will be destroyed.
Repair cracks using acrylic repair procedures
Is the spa setting flat and level?If the foundation that the spa is sitting on has a bow or warp in it, the weight of
the water will cause the spa to conform to the shape of the foundation. This
will cause cracking due to stress.
Re-level and re-support the foundation. Repair cracks using acrylic repair
procedures.
Is the base fully supported?If the base of the spa isn’t supported or has rotted away, over time the weight
of the water will cause stress cracks.
Re-support or re-build the base to eliminate stress and repair cracks with
acrylic repair procedures.
Acrylic Spa Shell Symptoms
There are several bubbles and blisters in the spa
The older the spa, the more likely that some type of outside damage created
the blisters or bubbles.
Sunlight, freezing temps, and harsh chemicals are just a few of the common
causes.
Repair blisters using acrylic repair procedures.
Is the spa kept covered when not in use?This will help prevent some of the causes.
Provide a good cover to help prevent further damage and repair cracks using
acrylic repair procedures
What do the chemicals read?Harsh chemicals and chemical abuse (especially low pH) are one of the
biggest causes of blisters and bubbles in the acrylic.
Repair blisters using acrylic repair procedures.
Has there been a history of chemical abuse?There will always be other evidence of chemical abuse.
Check for the bottom of the cover deteriorated or the jets will be bleached or
the pillows will be destroyed.
What chemicals do you use?Different types and brands of chemicals will react differently in spa water.
If you use pool chemicals in your spa, or chemicals that are not made for
warm water, you can create surface conditions on the acrylic leading to
blisters.
Switch to using only chemicals that are less harsh, Repair blisters using
acrylic repair procedures.
Do you let chemicals set on the bottom of your tub?When you add chemicals, if you allow the chemicals to set on the bottom of
your spa (especially bromine tablets), the chemical reaction can create
enough heat to cause a blister or bubble.
Never let tablet chemicals set on the bottom of the spa. Use a floater to
dispense these types of chemicals into the spa water.
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