Wet End Removal – Hot Tub Pumps

hot tub spa pumpsReplacing a pump seal requires removing the plug that covers the motor shaft.  Use a hook tool to hook the impeller to avoid it turning. When holding the impeller, turn the motor shaft screw counterclockwise and loosen the impeller.  Remove the 4 through bolts that hold the motor to the wet end. These are usually 5/16″ heads that run all the way through the motor to the wet end. Once removed, the wet end falls off revealing the impeller inside and providing access to the pump seal.

Be sure to have ordered the right pump seal kit ahead of time for replacement once pump is taken apart.  Insert the pump seal kit per directions that come with the kit and then replace the impeller and wet end, tighten through bolts and reinstall the pump.

spa pumpsThe problem with pump seals is that they are susceptible to chemical damage by out of balance water. That is why it is imperative that the pH in a hot tub is kept between the desired range of 7.2-7.6 which is slightly basic.  This keeps it out of the acid range and hence avoids eating at pump seals which in turn can cause a leak at the pump.

Regular inspection of spa pumps can provide early warning of a leaky pump seal and if the seal is replaced in a timely manner, pump replacement can be avoided.

Need a replacement wet end, you can get those too at Hot Tub Outpost USA.

Water Problems in a Hot Tub

hot tub spa chemicalsGeneral water problems in a hot tub can be avoided by being sure there is enough sanitizer in the water (bromine or chlorine – never mix the two) and that the pH level is between 7.2-7.6. A water test kit or test strips can be used to monitor hot tub water health.

If water problems such as foaming, bad smell and cloudiness occur, it is important to understand some basics so the treatment does not increase the problem.

First of all, hot water scents and aromatherapy fragrances should not be used to mask hot tub odors that may be caused by poor water chemistry as the problem is still there and can be addressed head on by using a shock treatment in the water with a non-chlorine shock.

Similarly, foam problems are not solved by a de-foaming. These products can reduce the foam in the spa so it can be used, but the underlying problem of why the spa is foaming needs to be addressed.  Are bathing suits or hair full of shampoo, soaps or oils?  If so, it is best to shower off before getting into the spa.

Foaming is a result of poor pH (outside the ideal range of 7.2-7.6) but also too many TDS or total dissolved solids in the water.

There are products that bind/coagulate particulates in the water so that they can end up in the filter.  See Hot Tub Outpost for details on the right hot tub chemicals for your spa.

To maintain a hot tub, you will need to regularly test the water.

Having a dirty filter puts a lot of stress on the pump. The pump has to work a lot harder to pull water through the filter.  Cleaning a filter and switching it out is a better way to keep the chemicals working right and also more economical.

The pH is important in the spa and should be held between 7.2-7.6.

Check the water 3x a week using the Monday-Wednesday-Friday hot tubwater care program at Hot Tub Outpost.

hot tub chemicalsFor sanitizer, either chlorine or bromine is used.

A pre-filter can also help eliminate contaminants and take out rust and iron while refilling the spa before it gets in the hot tub water in the first place.

Replacement spa filters are available at www.HotTubOutpost.com.

Hot Tub PH and Chemical Maintenance

chemical for maintaining hot tubGetting the chemicals balanced in the hot tub does not have to be a chore.  Using the Monday-Wednesday-Friday program, spa water maintenance is easy.

Some things to be aware of about pH and hot tubs.

The pH scale goes from 0 to 14 with pH of 7 being neutral.  Anything higher than 7 is base and lower than 7 is acid.

Low pH Problems

Running the spa with low pH is very bad for the hot tub and can cause equipment damage.  Problems with pump seals, o-rings, gaskets, heaters and pumps as well as leaks may be a result of operating the hot tub with water that has low pH.  The solution is to keep an eye on the pH level with test strips and add Spa Up or PH increaser to maintain the 7.4-7.6 ideal pH range.

High pH Problems

This can put mineral deposits on the shell and make your spa feel like sandpaper.  High pH can cause calcium carbonate to precipitate creating a white coating all over the spa.

Operating a spa with high pH also causes cloudy water and is not good for the spa.

Ideal pH Range

The ideal range to maintain hot tub water in is between 7.2-7.6.  Better is between 7.4-7.6 just so there is no danger in the spa slipping into acid water mode below 7 pH.

Have Spa Up and Spa Down on hand and add whichever one is needed to keep the pH in the ideal range.

What about Sanitizer?maintaining a hot tub

This is the other very important chemical for maintaining hot tub water.  Be sure to have enough bromine or chlorine in the water.  The amount of sanitizer can be somewhat reduced if using either a bromine salt system or ozonator.  If using a mineral stick, they can also be reduced, but never eliminated.

QCA Spas has a chemical dispenser for tablets right inside the filter and the amount of bromine or chlorine added can be regulated on the device.  Alternatively a floater can be used to dose bromine or chlorine.

Find filters, covers, spa chemicals and accessories and supplies from the Hot Tub Outpost, www.HotTubOutpost.com.