Meth system routine maintenance

[jbeez]

How often are you guys cleaning your various filters? I saw some nasty nozzle filters online and I was curious.   If you do get cruddy filters, what are you running, ww fluid, 50/50, 100%?

Are you guys using pre filters between the tank and pump? Where is this crud coming from, material breaking down inside the pump or line fittings?

[bamsho]

Running VP M1 here 100% meth.   Filter from Alky is between the pump and nozzle and haven't had any issues.  BPD has been running meth for years niw.  He hasn't  had any issue.  Im sure running a mix or WW fluid the filter would get nasty.

[jbeez]

I've even heard of things like some brand SS braided lines use a steel collar on the end and it degrades vs using brass.