My RODI unit is 15yrs old - I don't think I've every ripped cleaned it

[ZoWhat]

My RODI unit is 15yrs old - I don't think I've every ripped cleaned it

I mean, I've of course changed filters and the like... wiped out the membrane and filter canisters. But have never cleaned the tubing. The tubing is semi-clear... not seeing anything alarming

What's the chances my rodi water has sort of Fungi and weird Bacteria?

Steps to clean it?

 

[Mjl714]

@Buckeye Hydro spells out their annual cleaning recommendation.

 

[Gtinnel]

If your tds is 0 I probably wouldn't clean it, but if I did decide to clean I would probably just replace the tubing instead of trying to run anything through it to clean it.