What do you fill a Raymarine P79 Depth Transducer with?

[RIN]

The manual says it needs to be full of propylene glycol. Can something easier to buy be used instead?

Cheers

 

[rwilson]

antifreeze?

 

[Prhperio]

Yep… a quick search confirms it's anti-freeze ( https://en.wikipedia.org/wiki/Antifreeze ). Can't imagine concentration is vitally important, surely it's more to do with having a fluid there to transmit the pulse from the transducer and using something that won't freeze? No doubt others more expert than me will surely correct me if I'm wrong ( jfm where are you when we need you<g> )

 

[Cardo]

It's simply a non-toxic anti-freeze. Amazon has plenty of choices, this is what we got for ours:
http://www.amazon.co.uk/1000ml-Prop...d=1420908263&sr=8-3&keywords=propylene+glycol

(We got the 500ml version and paid a lot less for shipping, though!)

 

[maverickofpoole]

I was told by a marine electronics engineer to use cheap frying oil. It works fine giving a good picture even at high (20+ knots) speeds

 

[MrB]

I was told by a marine electronics engineer to use cheap frying oil. It works fine giving a good picture even at high (20+ knots) speeds

I just read this on a marine engineers site lol. (no mention of frying oil though)

Tank should be filled with non-toxic antifreeze (propylene glycol). Do not use mineral oil.

 

[Bertramdriver]

Sunflower seed oil works for me. Don't use olive oil it evaporates to a sticky mess

 

[maverickofpoole]

That's exactly what I use BD the cheapest basic seed oil frying stuff that all the supermarkets sell. Been in my P79 for the past 7 years and works fine

 

[salar]

You can use anything wet, but you don't want to use anything that will freeze, solidify or attack plastics. I used simple antifreeze, cheapest from Halfords.

 

[duncan99210]

Castor oil works well.

 

[VicS]

Castor oil works well.

Castor oil was specified for mine when I installed it 30odd years ago. It does not seem to deteriorate overtime like some/many cooking oils.

 

[bammylovechops]

Castor oil was specified for mine when I installed it 30odd years ago. It does not seem to deteriorate overtime like some/many cooking oils.

I use baby oil and it's good for your hands.