Water Quality Testing Equipment

Parameters

The standard kits cater for the 6 basic parameters of water quality as set by the World Health Authority (WHO) and recognised globally. These are:

• pH
• Free Chlorine
• Total Chlorine
• Turbidity
• Microbial Quality (Specifically Faecal Coliform count)
• Temperature

It is also possible to expand these parameters significantly to cater for the specific needs of a geographical region or local legislation, such as the addition of conductivity or testing for specific ions (Iron, Manganese, Copper etc). As such it is the perfect tool for analysis where laboratory facilities, or even power, are unavailable.

The Kit Range

Currently the DelAgua kits comprise of three units, each having its own benefits, dependent upon the testing requirements. These units all share the same design ethos of user-centric benefits to ensure that comfort, simplicity, accuracy and repeatability are never compromised.

• The Basic Single Incubator Kit

Complete with the accessories listed below, the basic single incubator kit comprises of a fully integrated rechargeable lead acetate battery housed with a single, calibration capable incubation chamber set to incubate at 44°C, to isolate thermotolerant coliforms. These components are fully sealed in a NATO standard, vented slimline case balanced around the handle. It weighs a very portable 10Kg.

• The Dual Incubator Kit

The Dual kit shares the same casing as the basic kit, and comes with all accessories listed below. However, the Dual kit has a separate battery system with equally robust casing plus connecting cables, to make way for a second incubation chamber capable of incubation at either 44°C for a doubling of capacity, or at 37°C to give a total coliform count within the same testing run as the Faecal count. The weight of the kit is 8.75Kg with the battery an additional 10Kg.

• The Lightweight Incubator Kit

As the name suggests, the lightweight kit weighs just 6Kg. It offers all the features of the basic single incubator kit with the exception of not having an integral battery system. As such, the lightweight kit requires a separate power source such as a car battery or even mains electrical supply. This kit is suitable for testing in a laboratory or where vehicle access and availability of car-sourced power is not compromised.

Each kit comes with the following accessories as standard:

• • Filtration Apparatus
• • Spare filtration disc and o-rings
• • Vacuum pump
• • Sample cup with detachable cable lanyard
• • 3 sets of 16 re-useable aluminium petri-dishes with strap housing
• • DC power adaptor (110 to 240 volts), includes additional connectors to power the unit from a car battery
• • Digital timer
• • Comparator (Chlorine & pH)
• • Forceps for membrane manipulation
• • 10 x Polypropylene media bottles
• • Methanol dropper bottle (empty)
• • Hand lens for colony counting
• • Lubrication grease for vacuum integrity
• • Large spirit thermometer (-10°C to 50°C)
• • Trimmer tool for calibration
• • Mini screwdriver for calibration
• • Turbidity tube to measure 5 to 2000 NTU
• • Instruction manual in English. (Other appropriate language manuals can be supplied if required)
• • Instructional CD Rom with sectional methods in video format
• • Consumables for 200 tests (also available separately)
•   ο 200 x Membrane filters
•   ο 200 x Absorbent pads
•   ο Pad dispenser
•   ο Culture medium 38.1g tub
•   ο 250 x DPD No 1 tablets
•   ο 250 x DPD No 3 tablets
•   ο 250 x Phenol Red tablets

Unique Features

The DelAgua testing kits are the only commercially available kits that offer the ability test for the 6 parameters of Free Chlorine, Total Chlorine, Coliform, pH, Temperature and Turbidity within a NATO standard highly durable and rugged single housed waterproof pelican case, measuring parameters according to WHO guidelines.

The DelAgua kits are the only kits offering a one-way venting system from the closed case, ensuring no water ingress. Other available kits use a hole in the case, compromising the water integrity.

The Basic Single Incubator Kit is the only commercially available kit to operate with a fully internalised and sealed rechargeable battery system.

Uniquely thicker re-usable petri dishes ensure that the internal samples and membranes do not come into contact with the internal surface of the dish lid should the dishes become compressed when held, ensuring sample integrity.

Jackson Tube for turbidity measurement uniquely offered in a 2 piece assembly to reduce wear and decrease the potential for leakage of sample, unlike alternative kits which have a three part tube.

The Dual kit allows simultaneous measurement of both faecal (thermotolerant) and total coliforms. This ensures that initial sample conditions are identical and offers reliable comparison and ratio analysis. It also significantly reduces (by a full working day) the time required to test for both parameters with a single kit.
Features and Benefits Table:

	Feature	Benefit
1	Rugged NATO standard waterproof pelican case containing all kit contents	Ensures the integrity of the kit components against moisture ingress, also protecting the incubation chamber and Jackson turbidity tubes to mechanical damage.
2	Slimline case profile	Ensures ease of portability without the problem of knocking against the users legs. This reduces the need to hold the case away from the body and thus reduces fatigue significantly
3	Case balanced around the carrying handle	Reduces the fatigue on the hand when carried by ensuring that weight is centralised at the handle, and removes the discomfort of carrying a kit with weight displaced towards one end as is the case with other available units.
4	Contains sufficient consumables for 200 tests	Is a stand-alone product with no up-front additional requirements or costs
5	Battery charge sufficient for up to 5 incubation runs	Gives independence from electrical supply for up to 80 samples (160 in the case of the dual incubator unit) allowing for increased remote activity
6	Comes complete with a ''jump-lead'' style crocodile clip electrical cable	Allows recharging via a car battery, giving potentially unlimited remote sustainability without any reliance on mains conducted electrical supply
7	Simple to follow instructions	Allows even non-technical personnel to gain good results from the kit, increasing its access to a community as required
8	CD ROM	8 stage reviewable training video programme with audio allows understanding and review of all aspects of the kit
9	Multilingual manual options	Increases the access of the kit to a broader base of users without a grasp of English
10	Fold away lid flaps covering Jackson Tube housing	Both protects the Jackson tube from accidental mechanical damage from any flying debris whilst the kit is open AND provides a clean and stable platform on which to place the sterile elements of the kit prior to use, without contamination from the surrounding environment.
11	Metal petri-dish sample chambers	Re-usable and sterilisable, decreasing the amount of produced waste and environmental impact. Also decreases the cost of continued use via the reduction of consumable requirements
12	Internal Fixed Battery	Reduces chance of damage or loss of battery and allows true on site testing without need to link to a separate unit (single chamber kit only)
13	2 part Jackson (turbidity) tube	Reduces wear on the tube that can become apparent in multiple piece tubes, ensuring accuracy of read
14	Large spirit thermometer	Enables easy and ''at a glance'' measurement of accurate temperature without strain (that can occur especially in bright conditions) and unrecognised fluctuation between points.
15	Dual Kit offers simultaneous measurement of total and thermotolerant coliforms	Ensures that starting conditions of both tests are identical for more reliable results, and reduces testing time for both parameters by a full working day using a single kit.
16	Rubber Bulb vacuum system	Reduces the chance of breakage in the field that is common with plastic trigger vacuum systems, thus making it more reliable and reducing the chance of a non-working kit in the field

 

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