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HydroFlow - Case Studies / Field Tests

 

Koi Pond - Marriott Koolina Beach Club » pdf file

 

Location: Koolina, Hawaii


Trial Period: 30 days


Trial goal: Significantly reduce algae to a minimum in the water fixture at the hotel's main entry.

 

Note: The water fixture has a filtration system and most of the time have green (murky water), due to algae.

 
 

A P160 water conditioner was installed on a 6" PVC pipe, before the circulation pump.

 

Monitoring period 1: 5 days. May 12th - 16th 2011; water changed from murky to clear

 

Monitoring period 2: 5 days. May 16th - 23rd 2011; water remained very clear, and when maintenance
crew walking on bottom of pond, water does not turn murky.


Monitoring period 3: 5 days. May 23rd - 31st 2011; water became even more clear (water quality is so
clear it seems fish are floating in the air)

 

Before Photo - May 12, 2011 -

 

After Photo - May 16, 2011 -

 

Before Photo - May 12, 2011 -

 

After Photo - May 16, 2011 -

 

Before Photo - May 16, 2011 -

 

After Photo - May 23, 2011 -

 

Before Photo - May 23, 2011 -

 

After Photo - May 31, 2011 -

 

Field Conclusion


Algae reduction: The algae reduced by over 90%.


Water clarity: The increased clarity was noticeable within 3 days.


Maintenance: The hotel completely stopped the use of UV lighting and algae treatment! And is looking to reduce the use of back wash time and frequency of there 5 filters.


Estimated Return on Investment due to maintenance cost savings: 12 to 18 months.