What Causes Hot Tub Foam?

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Coast Spas Reviews image of a spa with a large amount of foam

What Causes Hot Tub Foam?

At Coast
Spas Reviews, we know that you likely have the same problem as every other hot
tub owner. Every so often, you have a film form on the top of your water. In
this blog, we are going to discuss just what causes it and how to get rid of

What Causes

Below, you
will find some common causes of what exactly makes your water foam up.

Beauty Products – This is not limited to only makeup. Beauty products
have an extensive definition. Some of the most popular products that are
causing your water to foam up are makeup (of course), lotions, fabric
softeners, hair products, soap residue, and even natural oil from your skin.

Low Calcium – No, we are not saying that you need to drink more milk.
The calcium that we are referring to is the calcium deposits in the water. This
is a naturally occurring thing, but some water may not have high levels of
calcium. Purification filters can cause this either at your home or from the
water treatment plant.

High or Low pH – By far, the most common reason for water foam is due to
high or low pH balance in your water.

How to
Fix It

We are going
to go over the above list and share with you how to fix the foamy water.

For beauty products, you can make several changes to avoid this cause.
The first thing you are going to want to do is to take a shower. Make sure that
you don’t use any additional products that you don’t have to. This is to get
all the oils and other things off your skin. If you must use soap, make sure
that you rinse off more than usual. This will get rid of the residue. Avoid
soaps that foam a lot for this step. The second thing you can do is to make
sure that when you wash your hot tub clothes, you wash it an extra time with no
additives. This will make sure that the residue still lurking in the fabric
will be released.

Low calcium is going to be a little bit harder. You are going to need to
purchase a product from your local hot tub store. This additive will inject the
required calcium into the water. This should prevent it from getting too foamed

The same can be said for high or low pH balance. Stop by the hot tub
store and pick up a pH kit. This will allow you to test the water and make the
appropriate adjustments.


With that
being said, Coast Spas Reviews hopes that you have a fun and relaxing summer.
There is hardly a better way to pass the time than relaxing in the hot tub with
your family and friends. As always, make sure that you give us a call or drop
us a line if you have any additional questions.