Non-draft tower beer line cooling

[butterblum]

I have looked through these threads, and thus far, I haven't been able to find any resources on my issue exactly.
I use between 10 and 13 feet of beer line between my kegs and my faucet in my dual-tap kegerator, as I like to pressurize my kegs to ~16psi to keep my beer well carbonated. I have an insulated temperature probe taped to the side of one of the kegs, and I hold it at 42 degrees using my Johnson temperature controller. I currently coil my extra line and place each coil on top of their respective keg. The only problem I now have is that I lose the first pour to foam every time I decide to drink my beer. (There are always multiple days between pours for me). Tower cooling is not the issue (I have each line running through insulated copper piping in the tower), as I did not have this issue when I only had 5 feet of line between keg and faucet (because that was how my kit arrived).
I use a Danby mini fridge with a cooling plate on the back wall of the fridge. Will a simple computer fan keep the lines cool by circulating air from the bottom of the fridge to the top? Or is hard to keep the lines cool as plastic is such a poor thermal conductor?
Thanks

 

[day_trippr]

Thermal conduction is described as resistance. Given infinite time, the thermal resistance of a material could be almost infinite but an object made from it will still reach equilibrium with its environment.

If you don't have a small fan running 24/7, give it a try.
It doesn't take much air movement to eliminate temperature stratification.
An 80mm fan running a half speed is plenty...

Cheers!

 

[butterblum]

I haven't had enough time yet to confirm this, but I think some of the problem has disappeared with the addition of a second keg. Must be because the additional keg/beer loses heat at a much slower rate than the volume of air it displaced.