I am seeing yellow discoloration on a portion of the shell along the outboard edge of the tub. I am not seeing any staining on the cover nor is there buildup of any kind inside the tub at this area. In fact I am not seeing any staining inboard or outboard anywhere else on the tub.
Now this is an area where I do stand to add chemicals and I take extreme caution when adding chemicals (or so I thought). Chemicals added so far are dichlor, 7.5% bleach, dry acid and boric acid.
This is a brand new bullfrog x8, had for 1 month.



Any suggestions to clean this up?
Now this is an area where I do stand to add chemicals and I take extreme caution when adding chemicals (or so I thought). Chemicals added so far are dichlor, 7.5% bleach, dry acid and boric acid.
This is a brand new bullfrog x8, had for 1 month.



Any suggestions to clean this up?