Anyone having problems with Ben's salt test?

Got 234 w/ salt thursday.

Salt tested 2800-3000 that evening.

Put 40 lbs of salt in.

Pulled sample from same place in pool, same approx. time of the evening on Friday. Tested at 2200. Restested from same area. 2200

Tested this morning. Same location in the pool. Now says 2600.

Filter was running for at least 1 hour prior to all samples being pulled.

I read the issue with static charges, and have been wiping the tips per Ben's suggestion all along.

Pool store strip said 2700 about 3 months ago.

Any thoughts?

22,500 in ground, poolpilot digital SWG, plaster, 7 foot spa, DG.

FC/TC 4
CYA 30 (raising to 50 slowly)
Cal 430
Alk 100
Ph 7.4

Yes... I'm having issues as well. (I posted separately).

I tested 2200 twice... Pool Store as 3000, SWG says 2900.

Don't know who to believe!

Robert

Not me. I tested at 3200 brought water in to local pool place and it was 3200 and even test strip was close @ 3190. Aquarite was ready 3100. Make sure that you are being very presise as to Ben's instructions.

I am having problems with the test too! I am having problems with the level showing too high. I have tried wiping the tips everytime and have had no luck.