Hi All,
We have begun cleaning our larger brite tanks under pressure for the obvious reasons. However, I'm curious if those conducting this practice could shed some light on your nuances of the process, primarily dealing with best practices to avoid small DO ingress while adding rinse water and detergent to the tank?
Currently, we run a whole series of block & bleed assemblies that allow us to fully purge all fittings and spaces between connections by either completely filling them with water or backflushing and purging them with CO2 from the tank. Our goal is to avoid, if possible, the small amount of DO introduced in the spaces between connections when dealing with the pressurized tank. That all being said - it is kind of a PITA and uses a ton of valves and tees that result in very heavy connections on the ports. Plus, its not like we are using deaerated water for cleaning anyway. Is this overkill?
Has anyone had the opportunity to monitor the gas purity, via DO meter, of a tank cleaned under pressure? Are those who clean under pressure doing a "secondary purge" prior to filling by running in CO2 at a slightly higher pressure to the bottom of the tank and slowly venting the top, in an effort to further reduce oxygen in the tank?
Or am I just overthinking this?!
Thanks in advance for any insights that are able to be shared!
Cheers,
Tom
We have begun cleaning our larger brite tanks under pressure for the obvious reasons. However, I'm curious if those conducting this practice could shed some light on your nuances of the process, primarily dealing with best practices to avoid small DO ingress while adding rinse water and detergent to the tank?
Currently, we run a whole series of block & bleed assemblies that allow us to fully purge all fittings and spaces between connections by either completely filling them with water or backflushing and purging them with CO2 from the tank. Our goal is to avoid, if possible, the small amount of DO introduced in the spaces between connections when dealing with the pressurized tank. That all being said - it is kind of a PITA and uses a ton of valves and tees that result in very heavy connections on the ports. Plus, its not like we are using deaerated water for cleaning anyway. Is this overkill?
Has anyone had the opportunity to monitor the gas purity, via DO meter, of a tank cleaned under pressure? Are those who clean under pressure doing a "secondary purge" prior to filling by running in CO2 at a slightly higher pressure to the bottom of the tank and slowly venting the top, in an effort to further reduce oxygen in the tank?
Or am I just overthinking this?!
Thanks in advance for any insights that are able to be shared!
Cheers,
Tom
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