20-year veteran toxicologist certified by Environmental Protections Agency, California Departments of Health Services & Toxic Substances Control, together with respected local electrical & plumbing team with over a decade of experience in Baja Sur, providing custom water filtration solutions with testing in Pescadero, Cerritos and Todos Santos for your peace of mind & management

  • Testing Parameters:

    Physical:

    • Salinity

    • Turbidity

    • Color

    • Odor

    • Taste

    Chemical:

    • pH levels

    • Acidity

    • Alkalinity

    • Hardness

    • Chlorine

    Biological:

    • Bacteria

    • Algae

    Test results are delivered with actionable analysis to empower you use your water with confidence, and with the knowledge to adjust your filtration system and usage as it best compliments your household.

  • Water filtration system maintenance, enhancements, or fully-new installations are available based on your individual household usage and needs.

    Recommendations may include:

    • Adjustment of replacement protocols or existing systems

    • Additions or removals of existing parts

    • New system installation to reduce dependence on single-use plastics and garaphones.

    • Adjustment of plumbing plans or existing piping to best suit your household needs.

CONTACT US!

Testimonials

  • Raychel, homeowner Cerritos Beach

    Drew and the team at Know Your Water Baja (KYWB) were lifesavers for us!

    When it was clear the purification system we had installed by someone else in our new Cerritos home was not done correctly, KYWB reconfigured our system so that we could have clean water, good water pressure, and no burst pipes! They are experts at what they do and are punctual, tidy, and easy to work with. We also used them for water quality testing and feel so much better knowing that our water is safe to drink.

    I wish we had simply hired them from the get-go. If you want a quality system that works the first time around, I highly recommend them! Thank you for everything, KYWB!

  • Nicole, property manager Gavilan, Pescadero

    Drew and his team worked with us to come up with the best solution for our water filtration maintenance needs, given that we have a commercial and a residential system onsite to service the 3 buildings for our guests.

    Once we agreed on the best plan, they were able to source, replace and test the water system within four days between check-ins, making it a smooth process and giving our guests confidence to enjoy their stay.

  • Susan, homeowner Gavilan, Pescadero

    We already had a water filtration system in place, but our water didn’t taste good.

    I contacted Drew so he could come out and test our water. The results we got and his filter recommendations made our water taste fantastic. We have eliminated the need for garrafons of water. No more heavy lifting!

    His service was knowledgeable, friendly, fast, efficient and easy.

  • Jill, homeowner San Vicente, Todos Santos

    I thought something might have been amiss with my water filtration system because of how I was feeling.

    Drew tested the water and shared the results that proved I was right to be concerned. He also worked with me on a filter replacement plan that worked for my budget and timing.

    Being able to talk directly with him about my concerns, my options and know that he is helping to manage my maintenance takes such a weight off of me!

  • Sam, homeowner Pescadero Huerta

    I wanted to share a really good experience I just had with a home upgrade.

    My house came with a standard hydropneumatic system, but lately, the pump was constantly cycling and my water pressure was struggling.  It took forever to get hot water to the showers. 

    I luckily ran into Drew, who's a surfer and a friend here local in Pescadero. He tested my water and designed a pump and filtration system that completely changed things. I usually get a ton of anxiety when people work on my house, Drew and Paco were total pros.  He did exactly what he promised and right on schedule.

    ​Now, the system is quieter and more efficient, and we have clean drinking water right from the tap!

    If anyone wants his contact I'll happily pass it along and recommend him to anyone.

WHY IS WATER A KEY TO LIVING WELL IN BAJA SUR?

Access to clean drinking & cooking water is a proven aid to continued health.

Diverting grey water from septic to your land & plants, is both smart conservation & can be cost-saving.

We live at the end of a desert peninsula, water is a limited and costly resource.

Single-use plastics often end up in smoke that affects air quality.

GET TO

Know Your Water is guided by Drew Reinstein, who was recruited out of college by one of the largest oil refineries in the world, to design and build their wastewater testing and bioassay lab in Point Richmond, California (USA). Drew ran the lab for over 20 years before taking early retirement, and is certified by California Department of Health Services, Department of Toxic Substance Control and the Environmental Protection Agency.

Drew continues to follow GLP and EPA guidelines for all water testing parameters he conducts. His analysis is based on decades of earned expertise, curiosity of new innovations, and appreciation for our most precious resource.

By request, Drew works together with a trusted plumbing & electrical team with over 10 years of local expertise to craft custom water usage & filtration plans that best compliment your household needs.

Email: sanctumbaja@gmail.com