Jack's Magic Stain Solution 1 (2 lb) (2 Pack)

We began to develop some staining in our pool that looked a little like rust spots. We're on a well (no city water), so this could have been the culprit. We were given a bottle of this from our local pool rep, and the rust stains disappeared in about two weeks. The label also recommended using Jack's Magic Purple Stuff (for salt water pools), which we didn't have at the time. After about 6 months, the staining re-appeared. This time, I treated with both chemicals and the stains were gone within several hours. Its been several months, and the stains have not come back. Couldn't be happier with this product.

I have used this product several times in the past and will continue to use this product in the future.I have a plaster pool that has been remodeled with Fiberglass. Occasionally I get a stain that I can’t brush off or remove with the standard chemicals available at the pool supply store. No one has been able to identify what the stain is. I heard about this product, tried it and have been using it ever since.Works Great! It is shocking to me how quick it works. Usually works in my pool with in 6-8 hrs. Be sure to read directions. You need to lower your chlorine before using.

I’ve been the the pool business for almost 2 Decades and swear but this product. It is important you get he water chemistry with in the given specifications or the results may be lacking. Highly Recommend!

My hubby noticed some etching or spots on the pool floor. Was informed by our pool company the best way in determining course of action was to buy the spot kit to determine appropriate product. Both products worked like a champ.

Amazing product..we were about to refinish our 10 year old pool because of the staining issues all over the pool we had..literally about to write a $$$$$$$ check..the pool finish person told us to give this a try first and it was a miracle! Our pool looks as good as it did when it was installed..definitely recommend this product!

WOW! I wish I took a before pic. Our 20yr old pool had many brownish mineral stains. We thought we'd try this first instead of replaster, and it worked great!!! Not one stain left. It did mess up our chemicals so pool service has been over to keep it up. But it is well worth the money!!

Amazing stuff. Don’t know what it is but it works. Also found at my local pool supply but way more expensive. But two jars if you can. Use one and one as reserve.

After doing the stain test, it told us we need this stuff. Adjusted pool to recommended levels and added this. Stains disappeared. So for us it just works (following directions closely)