Filters in instrument plumbing

[Surge]

I'm re-plumbing and re-wiring a Nimbus 2 cockpit and want to know why there are filters in some of the instrument tubing.
There is a filter on the nose mounted pitot tube as well as on the static tube from the tail boom.
There was no filter/gust filter on the TE tube, nor on the four nose mounted static ports.

Since I'm upgrading all the flow based instruments to pressure transducer based instruments is there any benefit in retaining these filters?
They look like the one on the right in this picture: http://www.svsponline.co.uk/user/products/large/Gust%20filter.jpg

[Peter Purdie[_3_]]

I'm guessing the previous owner intended them to be water traps; if
the nose statics weren't used they wouldn't bother, and in the TE tube
(although just as likely to give water ingress as the tail boom statics)
might be worried about adding undesirable vario lag.

At 10:55 14 April 2016, Surge wrote:
>I'm re-plumbing and re-wiring a Nimbus 2 cockpit and want to know
why there
>are filters in some of the instrument tubing.
>There is a filter on the nose mounted pitot tube as well as on the
static
>tube from the tail boom.
>There was no filter/gust filter on the TE tube, nor on the four nose
>mounted static ports.
>
>Since I'm upgrading all the flow based instruments to pressure
transducer
>based instruments is there any benefit in retaining these filters?
>They look like the one on the right in this picture:
>http://www.svsponline.co.uk/user/products/large/Gust%20filter.jpg
>

[Jim White[_3_]]

At 12:27 14 April 2016, Peter Purdie wrote:
>I'm guessing the previous owner intended them to be water traps; if
>the nose statics weren't used they wouldn't bother, and in the TE tube
>(although just as likely to give water ingress as the tail boom statics)
>might be worried about adding undesirable vario lag.
>
>At 10:55 14 April 2016, Surge wrote:
>>I'm re-plumbing and re-wiring a Nimbus 2 cockpit and want to know
>why there
>>are filters in some of the instrument tubing.
>>There is a filter on the nose mounted pitot tube as well as on the
>static
>>tube from the tail boom.
>>There was no filter/gust filter on the TE tube, nor on the four nose
>>mounted static ports.
>>
>>Since I'm upgrading all the flow based instruments to pressure
>transducer
>>based instruments is there any benefit in retaining these filters?
>>They look like the one on the right in this picture:
>>http://www.svsponline.co.uk/user/products/large/Gust%20filter.jpg
>>

I use one of those stuck in the probe hole when de-rigged in order to keep
the earwigs from nesting in my pipes. Might have been the same idea?

[Alex[_6_]]

It seems to be kind of a best practice to include filters in instrument plumbing, since most gliders I have seen have them installed. I guess the purpose is to protect instrumentation from any kind of contamination, be it water, dust or insects.