The FMR75 Fluidised Reactor has been developed by D-D to give the ultimate low cost solution for fluidising a whole range of materials that are used on your marine or freshwater aquarium. Just another reactor ? Read on to see what makes this model different Many smaller reactors on the market look good, are packaged well and are competitively priced however when you get down to using them they just do not tick all of the boxes. D-D have spent a lot of time on such a relatively simple product ironing out the bugs from a users point of view rather than from an ease of manufacture. Suitable for: Rowaphos or Phosphate Removers Nutrifix Bio Pellets (Up to 700ml) Carbon Biological Sand as a fluidised sand filter Fully Packaged Reactor How often do you buy some equipment and then find you do not have all of the parts to install it? The FMR 75 reactor is supplied with all of the items that you need to allow you to get going. FMR reactor 3 x lengths of clear plastic tubing Non return valve Flow adjustment tap 2 Grades of media sponges 8 x cable ties for securing the pipework Low Cost: Important if they are to be used on small tanks or with multiple filtration medias where you will need more than one. Quality Build: It is no good having the best reactor in the world if it breaks after 5 minutes of use. Flexibility: It is important to be able to mount the reactor in a range of positions depending on the system. The FMR 75 can stand in the sump, beside the sump, hang on the sump or hang and clamp directly on the tank via the bracket incorporated into the lid design. The inlet and outlet pipes can be fitted in a number of positions to allow pipework to run in different directions. Efficient Fluidisation: The main requirement of the reactor is to fluidise media efficiently which the FMR reactor does very well. The base of the body is dished to disperse an even flow of water from the central downpipe through 360 degrees, preventing dead spots. Next there is a lower perforated diffusion plate which acts as a lower support for the media when not switched on which creates an empty plenum area below for faster fluidisation on restarting and to prevent compacting of media at the base of the reactor. A coarse sponge is provided to be used with fine materials that may pass through the perforated plate however this is not normally required for most medias. Loss of Media: Many reactors are not fitted with any type of barrier to stop the media from passing out of the top of the reactor and into the aquarium, relying simply on reducing the flow rate so that the fluidisation is within the bottom 2/3 of the reactor. Anyone who has used a reactor will know that on start up that you get a sudden flood of water which washes a portion of the media out before the fluidisation settles down. The FMR 75 is fitted with an upper perforated plate and also with a fine sponge to restrict all but the finest of particles from exiting the reactor in this situation. Note that when used with Bio Pellets that the upper sponge should not be used however the perforated plate will prevent the media from being flushed out of the reactor. Ease or Ability to Refil: Many reactors make it difficult or impossible to refill the media without emptying out the reactor first as the central tube comes off with the lid. this and the lack of a lower diffusion plate means that the media fills the tube when you put the lid back on, making it hard to restart. The central feed tube on the FMR 75 is separate and so the lid can be removed easily leaving the tube and media in place so that it is a simple matter to top up and to put the lid back on. Sounds obvious but you would be amazed by how many reactors you cannot do this with. There are no multiple screws to undo to remove the lid as it is screwed on and sealed with a multi stage replacable seal at the top of the body. Non Return: In a power off situation, where the reactor sits above the water level, the water and media will back syphon through the pump. The FMR 75 has a non return valve supplied separately which can be used or not, depending on installation, and prevents this problem from occuring. - simple but effective. Important Note: THE HOSE CONNECTORS ON THE TOP OF THE REACTOR ARE A TIGHT PUSH FIT ONTO THE LID OF THE REACTOR HOWEVER IF THE UNIT IS TO BE USED IN A CABINET UNDER THE AQUARIUM THEN WE RECOMMEND THAT YOU GLUE THESE FITTINGS IN PLACE FOR EXTRA SECURITY ONCE THE FINAL POSITION IS DETERMINED. THIS WILL PROVIDE EXTRA ASSURANCE THAT THE CONNECTOR WILL NOT COME OFF AT SOME TIME IN THE FUTURE IF THE REACTOR IS KNOCKED OR DISTURBED OR THE CONNECTORS WERE NOT PUSHED ON PROPERLY IN THE FIRST PLACE. FAILURE TO FOLLOW THIS MAY RESULT IN LOSS OF WATER FROM THE AQUARIUM.
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