WC causes skimmer to overflow for days

[e46er]

Originally Posted by Myka

Do you use a dechlorinator when you use tap water? If so, which one? If not, what else besides salt are you adding to the tank or the new saltwater? What type of salt mixing container are you using?

nothing has changed in the last 4-5 years apart from the skimmer. i use prime
just salt and i test the first batch and adjust the ca/alk / mg as needed. i roll the bucket first to mix it up, same chems Ive been using for years. last time I ordered a batch was probably a year ago but i use them in my dosing and nothing is out of wack. 55Gal plastic drum Ive had for 6-8 years, clean it out id say every 6 months.
my vertex in180 never had this issue. im just dumbfounded what would cause this. the skimmer neck is also clean.

it runs just fine for weeks i shut it off do a WC and 15-20 min later it wont stop overflowing