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 See #2 Below
 See #3 Below
 See #3 Below

Notes:
1a) This feed and bleed calculator works for all aqueous cleaning tanks, immersion, ultrasonic and spray systems.
1b) Ensure that you know exact volume of system when full.
1c) Ensure to mark tank to determine both bleed (accurately draining solution).
1d) Ensure to be able to determine chemical replenishment accurately.
2a) Line "chemical to add to tank without "Bleed" is used for correcting concentration without a bleed and feed.
2b) This is just a basic calculator for how much more concentrate is needed.
3) Bleed and Feeds are calculated to be of equal volume for simplicity and ease of use.

Explanation of why to use a Bleed and Feed system for bath control.
Standard Batch control for Aqueous systems start at 100% effectiveness and slowly degrade both in concentration and Soil loading (oils, grease, and sediment).

Unless checked frequently the batch could cause yield problems (poor cleaning). Also oils and sediment continue to degrade the cleaning efficiency of the tank.

Graph 2: Shows how Bleed and Feed achieves steady state with Cleaning tanks which can run indefinitely without a yield / cleaning issue in process.

Bleed and Feed systems can be set up to be handled manually or may be automated.

The nugentec process engineering team can help you successfully implement a feed and bleed for your production environment. Contact us at salesteam@nugentec.com or call 1-888-996-8436 x7. For a customized version of this calculator for your specific application please contact us here. 

Benefits of Bleed and Feed Systems:

  • No downtime of cleaning tank during production hours
  • Full dump and cleanouts our tank is minimized
  • Chemical consumption is decreased over time
  • Less man hours spent maintaining tank
  • Much less strain on waste treatment system
Please note that these calculations are generalized and accurate to +/- 10%. 

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