Viperdoc wrote:

Just curious- why did you have to replace the TKS filter? Were you getting a
high pressure indication? How long and how much do you use your system?

Yes, I was receiving a high pressure indication.

However... I did call the company to inquire about the high pressure
indication and one of their techs told me that low voltage can also fool
this sensor into believing there is high pressure in the lines.

At the time I was unaware that my primary alternator had failed (long
story, has to due with problems with my standby alternator sensor light
coming on for other reasons), so in hindsight, it appears that the
indication may have been erroneous.

I have a system in my Baron, but always run the fluid through a filter
funnel when filling, and after a couple of years and many tanks of fluid it
still runs great.

I do the same, but I am the second owner of the aircraft since the system
was installed and AFAIK, the filter was never changed in the six years
since installation. Therefore I am justifying the expense of the filter
replacement as preventive maintenance.

Oh, and the mechanic did admit that the old filter looked used, so it was
only a matter of time. Flying in the northeast and downwind of the Great
Lakes, my TKS system deserves a lot of TLC.

--
Peter