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Home HMA / RO / Resin DD HMA Filters DD HMA 20 Filters Devotedly Discus HMA 20 M (lead removal) Devotedly Discus HMA 20 M
What does a DD HMA 20 M do?DD HMA 20 M consists of a sediment filter and a Spectrum FIBREONYX SFBC-PB carbon. The pre filter will remove sediment down to 1 micron and protects the SFBC-PB carbon cartridge from blocking or channelling there by lengthening it's useful life. The SFBC-PB will remove Chlorine, lead and Giardia cysts. Select this version if you have significant lengths of lead water supply pipes. (UK property built before 1970 may have lead piping)Please be aware that carbon can raise the pH value of tap water. Flushing the filter may lower the pH to nearer the tap water value, likewise storing it for 24 hours to allow the carbon dioxide level to stabalise may see it lower.What is in the box?You will receive your DD HMA 80 filter "ready to install." The filter is supplied fully assembled. If you select the John Guest version it is supplied with all fittings and pipework. If you select the "Hozelock" it is supplied with the inlet and outlet fittings, but not the Hozelock fittings to attach it to 1/2" garden hose. Typically these are available at B+Q, garden centres etc. A housing wrench and instructions sent with every HMA unit.How long will the cartridges last?The SFBC-PB will remove 2 mg/lt of Chlorine through 27,000 litres and lead 2 mg/lt through 43,000 litres. Replace the sediment filter if your flow rate through the filter decreases significantly.The figures are for guidance only and not "absolute"Many aquarist change the filters once a year even though the capacity is not spent.Is there any waste from an HMA filter?No you can use every drop of water that passes through the filter. If you turn it off for more than a few days it is advisable to flush a few litres through it to remove the older water.Will my pH be affected?Most carbon based products will increase the waters pH , however this is usually only temporary and in the main not an issue, flushing 100 litres of water through the filter will normally see the product water pH in line with the tap water value - as a fishkeeper you should only really be interested at the chemistry of the water when you add it to the tank, not as it is produced from the HMA or RO as you can of course adjust the pH and hardness accordingly. It is not possible to predict "what will happen" as water around the UK varies so much in it's make up. Like wise if you leave the water for 24 hours and test the pH when the carbon dioxide has balanced it may reduce the pH.Will the HMA soften my water, remove nitrate or phosphates?No, HMA will not soften your water, nor will it remove nitrates and phosphates. How do I plumb it in?You can plumb the units in permanently or temporarily with the components supplied. HMA filters are not water pressure relient, so as long as you get water flowing through it, it will work.What flow rate is required?Maximum flow through the units is 3.8 litres per minute. Some water supplies will provide less than this, others will be in excess. If flow rate is excessive alter the input water presure - do not use the John Guest ON / OFF valve as it will fail as they are not designed for this.Can I store the filtered water?You can store water produced so long as it is in a container that is food grade plastic, or a glass tank etc. Always aerate stored water before use. Another way many people now use HMA is to remove a percentage of water from their aquarium, and drip new water directly back into it over the course of a couple of hours.So, how will an HMA filter improve my fish's health?Chlorine is poisonous to fish, and will kill the bacteria in a biological filter, so removing chlorine is very beneficial. Heavy, and organically bound metals in our tap water could over a period of time attack the fishes central nervous system, causing it stress and any manor of related health issues. HMA removes these substances. Fish living in HMA prepared water look healthy, are active and will display their natural colouration fully.
For John Guest versionDD HMA 20 MThank you for buying one of our filters. Please retain this document as your proof of purchase.DD HMA 20 serial number (unique ID entered here)Installation - the unit is provided with a ¾" BSP to ¼" Plain fitting this will fit most washing machine type fitting or outside taps. Select your water source and run a length of tube to the inlet side to the HMA filter. Cut another length and connect it to the outlet and place the free end into the vessel you are using to collect the water.The JG valve should not to be used to control the flow, these are stop valves, so either "on" or "off" - lower your input water pressure to adjust the flow to below the maximum.- When you first run water through the filter check for leeks.- The max flow rate is 3.8 litres a minute, but 2 litres per minute is fine, If flow rate is excessive alter the input water presure - do not use the John Guest ON / OFF valve as it will fail as they are not designed for this.- When not in use turn off all taps to relieve pressure on the HMA- When using after a lay off, please run a few litres to waste to flush the HMA- HMA 20 removes sediment, chlorine, chloramine and various other dissolved substances.Any questions or problems please ring Mark 01323 483689
- Width - 28 cm- Height - 35 cm includes bracket.- Depth - 15 cm- Weight (with cartridges installed) 2.530 kg
Can be collected in store, Charged at cost to us typically £11.60 - Courier to most UK mainland postcodes. Isle of White, Isle of Man,Northern Ireland, Scottish Islands and Highlands by Royal Mail