The DeepClean by Ohio Spa Repair

Over time, biofilms grow on your hot tub surfaces reducing the performance of the pumps and sensors and also reducing the effectiveness of the sanitizers. To remove the biofilm, we perform a DeepClean, cleaning the surfaces and plumbing in the tub, cleaning the filters, draining your tub and flushing the plumbing before refilling and adding the recommended chemicals to provide you with the best and most enjoyable hot tub experience. A DeepClean takes over 2 hours to complete, during which time we also do a basic check of your tub performance.

What is a Biofilm?

Biofilms are a group of at least one kind of microorganism that grow on a wide range of surfaces. Bacteria, fungi and protists are all examples of biofilm producing microorganisms.
What is an example of a biofilm?
A common example of a biofilm is dental plaque. We brush our teeth to remove the microorganisms ( that cause plaque), however we still need from time to time and often need, a "deep clean" to remove all the plaque. Even though we brush daily and remove the bacteria that causes plaque, they still produce biofilm in the form of plaque.

Where else are biofilms found?

They have been found underwater, underground and above the ground. They can grow on plant tissues and animal tissues, and on implanted medical devices such as catheters and pacemakers.

How does a biofilm form?

Biofilm formation begins when free-floating microorganisms such as bacteria come in contact with an appropriate surface and begin to put down roots, so to speak. This first step of attachment occurs when the microorganisms produce a gooey substance known as an extracellular polymeric substance (EPS), according to the Center for Biofilm Engineering at Montana State University. An EPS is a network of sugars, proteins, and nucleic acids (such as DNA). It enables the microorganisms in a biofilm to stick together and resist removal.

So why are biofilms a problem for my hot tub?

"The slimy EPS covering can act as a protective barrier to harmful substances such as antimicrobials and chlorine", according to a 2004 article in Nature Reviews Microbiology. In the case of a hot tub, the biofilms and EPS, are not reduced by adding more chlorine or other sanitizers. A DeepClean is required to remove those biofilms. When you remove the biofilms, the effectiveness of the chlorine is increased.
Sensors also can be affected by biofilms leading to expensive diagnostic services and repairs.
In summary, the sludge/biofilm that forms in a hot tub will clog the jets, makes your pump work harder, it reduces the effectiveness of bacteria-killing chemicals like chlorine, then creates an even better biofilm-producing environment in the process.