Marine biologists specialising in water treatment

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Marine biologists specialising in water treatment
Swimming Pool Water Treatment
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Marine biologists specialising in water treatment

• Dryden Aqua do not agree with keeping
  cetaceans in captivity
• Cetaceans often succumb from bacterial
  infection, tissue damage / oxidation
• and respiratory disease in chlorinated
  systems. This knowledge and awareness
• is unique to Dryden Aqua in the swimming
  pool industry.
• Dryden Aqua have essentially solved the
  problems for dolphins,
• killer whales, penguins as well as blindness
  eye damage with seals
• Knowledge and experience gained from looking
  after aquatic
• mammals and birds is now being applied to
  the swimming pool
• industry for people enclosures (swimming
  pools).
• Oxidation reaction products will damage your
  health especially children under
• 10 years old. We know what happens to
  aquatic animals, we also know it
• happens with people, but it has not been
  fully quantified.
• Why take a chance ? Dryden Aqua pool
  products protect your health, save
• water and reduce your carbon foot print.

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Dryden Aqua products

• AFM active filter media
• NoPhos phosphate control
• APF active polyfloc
• ZPM zeta potential mixer ZPMr
• ACO active catalytic oxidation

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Dryden Aqua products

• AFM is a registered product via the Madrid
  Convention
• AFM is protected by Patent
• AFM is certified under Reg 31 by the UK DWI
• AFM is backed by 1.2m Euro research program
  supported by the European
• Commission under the Life Environment
  initiative

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AFM is the only Activated Filter Media, the
product is trade marked , patented and certified.
It is not a crushed glass product and should not
be confused with such products. You wouldnt put
ground-up glass in food or your drinking water so
you shouldnt take the risk and subject the
public to a serious hazard. We refer to such
products as a do it yourself hang man kit be
aware of the risks and avoid the own goal.
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Dryden Aqua products

• Prevents growth of algae
• Prevents growth of bacteria
• Nophos stays in solution, it is not lost to
  atmosphere
• Helps to reduce biofilm and risk of Legionella
• Precipitates phosphate
• Precipitates arsenic
• Improves performance of AFM sand filters
• NoPhos may be used as the only flocculent for
  private pools, or in combination with APF. If
  used with APF NoPhos is used at the beginning of
  the year or if the pool experiences a heavy
  loading

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Dryden Aqua products

• 1 kg containers
• 1 litre 50 concentrate
• 5 liter 50 concentrate

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Dryden Aqua products
Application rates Public swimming Pools.
Dissolve 1 kg or add 2 litres of NoPhos
concentrate to 20 litres of water and
continuously pump into the water before the sand
or AFM filters using a metering pump at a rate of
0.5ml to 1.0ml per cubic metre of water per hour
passed through the AFM or sand filter. Example,
if the water flow through the filters is
80cubm/hr, you want to add between 40ml and 80ml
of NoPhos solution per hour. Measure the
phosphate levels in the water, if you detect
phosphate increase the application rate until it
is completely removed. It is very important to
record a zero reading and maintain a zero reading
at all times. For private pools NoPhos may be
manually added once a day or once a week, however
the preferred option is to use a dosing pump. The
manual application rate is 0.5g to 1.0g of NoPhos
per cubic meter of water in the pool per week. If
the pool has a volume of 60 cubic metres, it will
require 30g to 60 g (or 60 to 120ml of
concentrate) per week of NoPhos. Fountains
Aquatic features. NoPhos is a perfect product for
this application to keep the water crystal clear
with a low to zero bacterial count, helps protect
against Legionella. NoPhos works well even if
there is no filtration in the system, and unlike
chlorine NoPhos stays in the water, it is not
lost to the atmosphere. Nophos prevents bacteria
from growing but it is not a disinfectant. If
there is no water exchange NoPhos may be loaded
to a high concentration sufficient to last 6
months, so one of two applications per year may
be sufficient.
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Dryden Aqua products

• The next generation of coagulants flocculants
• Remove cryptosporidium oocysts, APF has a much
  higher performance than PAC
• If you dont use a flocculent you are not
  removing parasitic crypto oocysts
• APF will actively prevent bacteria and algae
  from growing
• APF has a much wider spectrum than PAC and as
  such it will remove more organics
• Reduces chlorine demand and by-products such as
  trichloramine, cyanogen THMs
• Supplied as a liquid to be dosed into the water
  before the filters

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Dryden Aqua products

• 5 litre containers
• 20 liter containers

Application rate, 1ml per cubm/hr of water
filtered
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Dryden Aqua products

•    The next generation of static mixers
•          Acts as an injection point for
  coagulants PAC or  APF (Active PolyFloc)
•          Amplifies the performance of coagulants
  to remove 50 more organics
•          Reduced organic levels means up to 50
  lower chlorine by-products
•          Reduce organic levels means less
  chlorine used
•          Reduced chlorine consumption means less
  pH correction chemicals
•          Lower organics means less food for
  bacteria to grow
•          ZPM will cavitate the water and provide
  a degree of disinfection
•          ZPM should be used for extra protection
  against cryptosporidium oocysts
• ZPMr is a standard unit fitted with a
  high powered tuned resonator

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Dryden Aqua products

• ACO provides residual oxidation in the pool
  and is constantly active
• ACO will make all surface in contact with the
  water self sterilising
• ACO will coagulate ve charged dissolved
  organic matter from the water
• When the pool water returns to the plant room
  any residual ACO will react with APF to form
  feldspar precipitate in the filters that will ion
  exchange ammonium out of the water and absorb
  any residual organics.
• ACO when combined with Dryden Aqua products
  AFM, APF and ZPM units can reduce chlorine demand
  by up to 95 in public pools
• ACO does not form toxic reaction products
• When used with Chlorine ACO will help prevent
  toxic reaction products such as cyanogen
• chloride in out-door pools and pools with UVc

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Family of products
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Annual Cost Savingsby using Dryden Aqua water
treatment principles
The above savings were achieved by changing the
sand for AFM, installation of ZPM, installation
of a flow monitor frequency pump control.
changing PAC for APF and NoPhos.
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Key points

• AFM active filter media
• Proper filtration rates
• Run phase lt15 m/hr
• Air purge gt95 m/h
• Backwashing gt45 m/hr (what goes in must come
  out)
• Coagulation Flocculation with APF
• Bacteria and algae control with NoPhos
• ZPM zeta potential mixers
• Inverter drives and flow monitors

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DrydenAqua marine biological technology Applied
to all types of swimming pools using chlorine, or
non chlorine products. We can also provide
natural swimming pools that do not use any
chemicals, we have been doing this for many
years with aquaculture systems.
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Open your eyes to better water quality
Dryden Aqua Ltd Butlerfield Bonnyrigg Edinburgh
EH19 3JQ Tel [phone] Fax [phone]
www.DrydenAqua.com www.AFM.eu
www.Ozone.co.uk www.NoPhos.co.uk