Essential Rainwater Test
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Essential Rainwater Test

53 Analytes Tested
Coliform P/A heavy metals nitrates turbidity See Full List

Recommended as an important baseline for water quality testing for rainwater collected in a catchment or other harvesting system.

While rainwater often begins very clean, it may pick up an array of metals, minerals, and bacteria as it collects and transports through a rainwater collection system. If safely configured, rainwater harvesting can provide high-quality water for drinking, livestock, and irrigation. Testing harvested rainwater is always advised to ensure safety and can help you make informed decisions regarding additional treatment (if needed).

This Tap Score test package provides all required materials to properly collect and submit a rainwater sample for certified laboratory testing. The results will include detailed analysis of common water health concerns related to natural water chemistry and common catchment system plumbing materials.

$199.00
  • Recommended By Water Systems Council Logo
    Recommended By
  • 53
    Analytes Included
  • 5
    Days Turnaround
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    Free Shipping Both Ways
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This is the right test if you:

  • Collect rainwater in a catchment or other harvesting system.
  • Water that tastes metallic, bitter or musty.
  • Water smells musty, moldy, or mildew-like.
  • You see biofilm buildup or other microbial growths on harvesting system.

Compare Rainwater Core Kits

What’s inside your testing kit?

Sampling Instructions

Every test comes with step by step instructions on how to prepare your water source, collect your water sample, and prepare your sample for return shipment to our labs.

Collection Bottles

Your kit includes all the bottles, tubes or vials necessary to collect your water sample. For most kits, however, there is only one collection bottle needed.

Sample Information Card

Your kit includes a postcard that asks for a few details about how and where you collected your sample (i.e. kitchen faucet). Just fill it out, drop it in the return box, and we'll do the rest.

Prepaid Shipping Label

Shipping is always on us. This package includes a prepaid priority shipping label to the lab. Just stick the provided label on the outside of the box and drop it in the mail.

Return Container (If Applicable)

Some of our tests require your water sample to be cold when it reaches our labs. If this applies to your test, the proper refrigeration items will be included.

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We know this stuff feels complicated, but we are dedicated to keeping it simple. Answers to all your questions are always a chat or FAQ away.

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Which test is right for me?

When in doubt, start with a Core Kit to analyze multiple contaminants with a single test. If you have more specific motivations for testing, try our Customize My Kit feature to match your needs to the right test(s).

What's the turnaround time?

Most people receive results within 3-5 business days after the lab receives their sample. However, some tests may require additional analytical time so be sure to check each kit’s product page for the most accurate estimate.

What will my report include?

Your report will rank your water against local and federal safety benchmarks, provide a thorough breakdown of any contaminants detected and how they may be affecting your health or plumbing, and provide non-biased treatment recommendations.

Are Tap Score labs certified?

Every lab facility in our network is certified with accreditations ranging from ISO to NELAC/ELAP, Direct State, DoD, DoE, DoH and beyond. Need a specific certification? Let us know so that we can meet your needs accordingly.