By Jamie Simpson

How often should you change your line and what causes the deterioration in it’s stated breaking strain?

I changed my main line prior to my recent trip to France and have already stripped it back off to be replaced.

Replaced after just one week may seem excessive to some people but if you think about it thats 7 days solid angling, fishing near overhanging trees with some underwater debris. Not to mention a few Carp played on it and in hot sunny conditions.

I use Berkeley Big Game for most of my general fishing and at around £10 for 1700 odd meters, it’s not exactly expensive. A useful tip is to have backing line on your spool and only replace around 250 meters. The reason for 250 meters is that it is well past my maximum casting distance and if I have to strip back a few yards near the hooklink then I have a bit to play with. This also applies to if I have a crack off for some reason.

I wouldn’t want to get snapped by a possible fish of a lifetime because I was too lazy to change damaged line. One way to check for damage is to hold the line between your fingers whilst reeling in, you can feel any nicks in the line by doing this. This however is not the only line deterioration, line twist and weather deterioration may also be present and you won’t feel this through your fingers.

What causes deterioration ?

I am convinced that temperature has an effect, as does sunlight. You only have to look at something that has stood in a shop window for a while to see that the colours will have faded and a that is soley down to sunlight and temperature. Where your main line enters the water will receive similar light intensity. How often do you come home from a fishing session even in the winter and you have a red face from the reflection of light from the water? This must have an effect. Line that sits just above and just below the surface gets a magnified intensity of sunlight due to light reflection.

Obviously the make up of the lake bed can play a role too. Weed will rapidly weaken your line, as will dragging it over gravel bars and other hidden snags. There are many different varieties of weed, all of differing texture and strength. Pulling a heavy clump of weed in may not cause your line to part instantly but it may have taken it past its elastic limit.

What Is an Elastic Limit ?

The elastic limit is the point of stretch reached in a monofilament line where it will not return to it’s original diameter and length. This may not be noticable to the naked eye, but if you were to test it with a micrometer it would be quite clear.

Water ph, can this have a long term effect ?

A bit of a thought and not one with any sound factual basis, is that if you fish an alkaline water for instance, perhaps this could deteriorate the line slightly quicker or slower than a more acidic venue if submerged for long periods and on a regular basis.

Just a bit of a rambling there I suppose but I have long considered the effeciveness of things such as different baits in various acidic and alkaline waters.

I hope this has got a few people thinking about the state of their line. At the end of the day, the risk of losing the fish of a lifetime because you were using old weakened line, and at the expense of just a few pounds, should not be an option.

Cheers, Jamie

Related posts