Hi everyone.
We have done testing smoothing out the elbow on the tap and it simply doesn’t make any difference to the pour and from our testing it does not affect “crud getting caught”. A simple clean with any beer line cleaner will keep the elbow it top condition. Also if you got in there with a high speed grinder there is a risk that you will damage the seat where the o-ring seals so I would not recommend it and it’s simply not necessary.
With regards to the tap spring we use a fairly soft tap Spring that requires approximately 9.5 newton force to overcome the spring tension.
The following three paragraphs will reference this drawing below:
http://www.intertap.beer/Downloads/Intertap%208022.pdf
Springs that apply more force are easy to fit however as you increase the spring force the tap becomes more unpleasant to use as it will require more force to open the tap and a soft touch tap is preferable. If the tap is lubricated correctly and the correct seal compression in seals 6 and 7 is applied then the 9.5 newton force should be sufficient to close the tap automatically.
As mentioned in the youtube video here (
) this will show you to how to adjust the tension of part 3 in the link above. If the part 3 is done up too tight then the spring may not actuate the tap so it’s important that if you use the spring then part 3 is adjusted accordingly.
So all you need to remember is adjust part 3 and also lubricate parts 6 and 7. If for some reason you want a stiffer spring and if we get enough requests for a stiffer spring then we are happy to make stiffer springs however the 9.5 newton spring should be more than enough for you guys if the tap is setup correctly. From our perspective the only reason a stiffer spring should be require is if customers are using large and/or heavy tap handles. Oversized tap handles may require more spring force.
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I personally do not use the springs, this way you can be pouring a beer with one hand and drinking another beer with the other!