We purchased a swim spa in October of last year. Up until the last couple of months, I knew little about spa maintenance and had just been following the dealer/installers instructions, with less than satisfactory results. In the last couple of months, I have been learning more about it (in large part from this website, so thanks for all the info).
The spa is a 15 swim spa which holds 1425 gallons. It is used for relaxation, exercise and my wife has used it for therapy after her knee replacement surgery. Since it was installed we have done several partial drain/refills. In the near future, I plan to do a complete drain and refill, but had a couple of questions I thought you may be able to help me with.
I have seen several suggestions/recommendations of things to use when I drain/refill the spa, but am not sure of some of them.
One suggestion is to use this product, or something similar (http://naturalchemistry.com/Pool_amp_Sp ... Purge.html) to clear the lines of the spa of any organic contaminants.
Another suggestion is to use a filter on the hose when filling the spa, such as this: (http://www.spadepot.com/shop/Pre-Fresh- ... 4C632.aspx) I live in the Atlanta area (not well water) and our water is pretty clean, so I am not sure if this is of any real benefit.
And lastly, the dealer recommends using this product: http://www.spaguard.com/Our_Products/Ba ... y%E2%84%A2
As I understand it, this is a phosphate buffer (the label says it is as KH2 PO4/K2HPO4) to help balance the pH and also removes dissolve metals in your water.
Which, if any of these things are necessary, recommended, or just not worth the extra money?
Any help is appreciated.