Knowing that the TDS is too high and will cause spots is probably worth the $20 if it saves you even one-half hour of wasted effort.
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I have a 45 tucker and just recently bought the 4 ft exel and love it for 1st floor cleaning. I think I wanna buy another for 2nd story cleaning and use the tucker only for the third floor windows.
I’d get an exel that does 3rd (possibly 4th) floor work and save the Tucker as a back up.
Ryan you really should check out the Gardiner 30’ SLX its my go to pole. IMHO you need two poles on your truck. Gardiner 30 SLX and Gardiner 60 Sectional.