Pentair All-In-One DPD Test Kit #78DPD$42⁹⁹

Pentair R151246 #78DPD All-In-One pool test kit

Pentair All-In-One DPD Test Kit #78DPD

Name: Pentair All-In-One DPD Test Kit #78DPD
Brand: Pentair
SKU: RAI-45-832
Price: 42.99 USD
Availability: OutOfStock

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$42⁹⁹

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Quick overview

Six tests in one kit Free, total and combined chlorine, pH, acid demand and total alkalinity.
DPD tablet method Uses DPD No. 1 and No. 3 tablets, the method that separates free chlorine from combined chlorine.
Combined chlorine reading Free and total together give you chloramines, the number that explains a pool that smells and stings.
Lucite test cell A rigid Lucite cell rather than a soft plastic vial.
Generous refills 50 each of the DPD No. 1 and No. 3 tablets plus the liquid reagents.
Red display box Supplied in the red display box with the water test booklet.

Full description and specifications ↓

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Product details

The Pentair #78DPD All-in-One test kit, part number R151246, covers the six readings a pool actually needs: free chlorine, total chlorine and combined chlorine, pH, acid demand and total alkalinity.

Why DPD, and why combined chlorine

DPD tablets are what let you read free and total chlorine separately. Subtract one from the other and you have combined chlorine, the chloramine that builds up in a working pool and produces the strong chlorine smell and the stinging eyes that people wrongly blame on too much chlorine. A strip or an OTO kit will not show you that number, so the problem goes unfixed.

What is in the box

The kit ships in the red display box with a Lucite test cell, 50 each of the DPD No. 1 and No. 3 tablets, 1 oz each of reagents No. 2 and No. 3, half an ounce each of No. 4 and No. 5, and the water test booklet. The acid demand test rounds it out by telling you how much acid to add rather than leaving you to guess.

Specifications
Brand	Pentair
Manufacturer part number	R151246
UPC	788379002527
Model	#78DPD
Type	All-in-One test kit
Tests	Free, total and combined chlorine, pH, acid demand, total alkalinity
Test cell	Lucite
Tablets included	50 each DPD No. 1 and No. 3
Reagents included	1 oz No. 2, No. 3; 1/2 oz No. 4, No. 5
Also included	Water test booklet, red display box
Shipping weight	1.42 lb
Ships	Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does this kit test for?

Free chlorine, total chlorine and combined chlorine, pH, acid demand and total alkalinity.

What is combined chlorine and why does it matter?

It is the difference between your total and free chlorine readings, and it is the chloramine that makes a pool smell of chlorine and irritate eyes. A kit that reads only free chlorine will never tell you that is happening.

What is acid demand?

It is the test that tells you how much acid to add to bring pH down to target, rather than guessing and overshooting.

What comes in the kit?

A Lucite test cell, 50 each of the DPD No. 1 and No. 3 tablets, 1 oz each of No. 2 and No. 3, half ounce each of No. 4 and No. 5, a water test booklet and the red display box.

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