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House was built in 79 and a lead test kit confirmed lead on one of the solder joints.

Thank you very much. The recent test I have shows only lead/copper but I have one from earlier this year. It was when the ph was a little higher, in the 8s. Currently it's in the low 7s when I had this test done. Prior test: https://gosimplelab.com/Q6EBPX/all-results The lead and copper were...

Have a whole house commercial RO system from Canature. It has one membrane and a 300gal holding tank on it. I’m on a well. Before the RO the water goes through a sediment filter, iron reducer then softener. After a chemical injection pump with 30 gal brine tank adds Neutra 7 soda ash to raise...