With the right tips and everything it can be a time saver,but with the sealers I use they are all pretty thin and the spray tends to fly.My first time using an airless I was wiping off the siding for 2 hours,some of it was all the way up to the second floor!Too each his own,you could use an airless if you want,I just choose to use a pump up.I've got so many I can't even count.I buy at least 5 a year,just because sometimes I forget to clean them out or leave them at home.It's easier to go buy a new one sometimes than to sit there on the job cleaning it out or unclogging it.That is a big problem with pump ups they clog all the time.Make sure you buy those paint strainers at home depot or where ever they only cost 40 cents a piece they will save you a lot of headaches.
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DID SOMEONE SAY DIVERSIFY?</FONT s></FONT c>