Kamco Power Flushing NEWSLETTER
September 2014


The SystemSure CONCENTRATES range

Our big news is that our new range of double strength water treatment chemicals is now available:

scale & corrosion inhibitor
•    HYPER-FLUSH neutral flushing chemical
•    SYSTEM-HUSH boiler noise silencer
•    SYSTEM PRE-CLEAN pre-commission cleaning liquid

These new products are supplied in compact 500ml packs, and have been reformulated to give even better performance than our existing 1 litre packs, and yet take less van and shelf space.

The big mover will be SystemSafe-DM Concentrate corrosion and scale inhibitor, which has already passed the Buildcert / DWTA performance classification required by Building Regulations.
It gives complete protection against corrosion, sludge and scale formation in heating systems, preventing internal pitting and galvanic corrosion, which leads to pin-hole corrosion and leaks. It is suitable for all metals commonly used in heating systems, including steel, cast iron, brass, copper and aluminium, and a 500ml pack is sufficient to treat a system with up to 12 radiators.

So, whats different about SystemSafe-DM Concentrate?

We built the first reversible flow power flushing pump in 1992, and since that time our pumps and chemicals have been used in more than a million system flushes.  We know that once a system is clean it is important to quickly treat it with corrosion inhibitor to prevent further deterioration, particularly of steel panel radiators. After a few years in service radiator interior surfaces no longer look like polished steel
*, and on close examination can resemble the surface of the moon. It was clear that a special type of corrosion inhibitor was called for.  (*Paradoxically, inhibitors are invariably developed and evaluated with specialist corrosion coupons fabricated from pristine grades of various metals.)

Our chemists were given the challenge of developing a product that would not only maintain clean surfaces in 'as new' condition but would also work with surfaces that had already suffered the effects of corrosion, and would penetrate and work under any residues of corrosion to shield surfaces from further attack.
The result was Kamco's new SystemSafe-DM Concentrate corrosion inhibitor - a complex blend of components - to give protection to both new and old heating systems with 'weathered' surfaces having generalised corrosion and shallow pitting.

All SystemSure Concentrate products are available now.  Call us for data sheets and prices.

CombiMag Twin

Following on from the launch of the CombiMag Dual combination power flushing magnetic filter and heater, we now have the CombiMag TWIN, a magnetic filter with TWO cylinders, each equipped with a 400mm 11,000 gauss rare-earth magnetic.

Sales of our commercial size power flushing pump, the Clearflow CF210, are increasing steadily and we realised that a larger power flushing filter was needed to cope with higher flow rates and larger quantities of debris found in commercial systems.

The CombiMag Twin will take almost 4 kg of sludge before the magnets require cleaning, and the TWIN is configured so that it can be cleaned without stopping the power flush.

It comes in a plastic crate (which doubles as a drip tray) and a section of hose to enable the Twin to be used without cutting the existing hoses of your pump.
Testing the level of corrosion inhibitor in a heating system.

Part L of the Building Regulations and BS7593 (the code of practice for cleaning heating systems) doesn't say that heating engineers should regularly check the level of inhibitor in a system, but smart engineers do just that on the annual boiler service.  They know that the level of the inhibitor can fall through natural wastage, and also because the householder may have drained down, for example, when replacing radiators or decorating behind them.

The snag is that before you can test the corrosion inhibitor level, you have to know what brand of inhibitor is already in the system.  There is no test kit that will test for all inhibitors.
 If the brand of inhibitor is unknown, the only safe option is to drain down and start again.

Kamco supply a test kit for SystemSafe-DM inhibitor, but this test kit will only give the correct answer when used on a system containing our inhibitor. The Kamco test kit checks the level of molybdate in the treated water. When SystemSafe-DM Concentrate is dosed at the ideal rate (impossible to guarantee in a real system of unknown volume, of course), this optimum level is 100 parts per million molybdate (330ppm for original SystemSafe-DM). Other inhibitors may not use as much molybdate, and may substitute other materials.

There are many different formulations, and good and proven inhibitors may be a blend of up to a dozen different components. Some inhibitors are very basic and very dilute, but they wouldn’t pass the Buildcert inhibitor standard as SystemSafe-DM does.

Kamco strongly advise that the adhesive "System Treated" removable label supplied with the inhibitor is left attached to the system/boiler so that you have a chance of knowing what inhibitor is in the system, and when it was added.

Is it OK to mix inhibitors?

It is unlikely that mixing two inhibitors will do any harm.  However, contrary to popular belief, all corrosion inhibitors are NOT the same! They are complex blends chosen for the abilities of individual components, but it's probably true to say some elements will be common.

There’s a good chance that mixing two inhibitors will provide some degree of protection, but the ideal situation would be to drain down and only use one inhibitor in your system (i.e. a Buildcert approved one), to keep a system clean and long lasting.

Iron Oxides are not the only deposit problem in heating systems

The summer months are often the time when maintenance on all types of heating and hot water equipment take place, especially descaling in the 60% of Britain that has hard water.

We have a particularly effective descaling chemical, Scalebreaker SR, supplied in crystal form, which when dissolved in warm water will dissolve almost half its own weight of limescale. We supply SR in convenient multiples of 2.5kg, and a pail kept on your van means that a quick blast of a heat exchanger with Scalebreaker SR and your Clearflow pump will quickly resolve hard water deposit problems.

Scalebreaker SR is safe to use on heat exchangers of all metals, including aluminium.

Overseas News
The quality of water in India is still creating a regular demand for our descaling pumps, particularly for companies manufacturing plastics goods, who often have mould tool descaling problems.

The same problems occur wherever in the world companies work with plastics, and in the last few months we have shipped pumps to Dubai, Romania, Latvia and South Africa to flush the cooling circuits of mould tools.

South Australia is continuing to experience debris problems with some underfloor heating systems, and our latest shipment of power flushing pumps will be helping to sort out those problems. The temperature range at which under-floor systems operate makes for a very comfortable house - but bacterial organisms just love those 35-55°C temperatures too, leading to a build up of slime in under floor circuits.

Thermal store flushing

Thermal store cylinders are quite common in new-build houses, and are great for fulfilling a high hot water demand, but they can lead to complications when the system needs a power flush. 

There are effectively two different circuits to flush; the radiator circuit and the boiler flow and return circuit, and until now we have suggested that these two circuits were flushed separately. However, one of our customers had the clever idea of looping both circuits together, effectively bypassing the cylinder itself, so that the system could be flushed "in one hit". A smart idea that saves time (click the diagram to see how it's done).

Kamco Twitter
Kamco Twitter
Kamco website
Kamco website
Email Kamco
Email Kamco