Frequently Asked Water Questions
Welcome to Culligan of Ventura. Our comprehensive FAQ page addresses common questions about water contaminants, treatment solutions, and our services in the Ventura area. Whether you’re dealing with hard water, curious about reverse osmosis, or considering a water softener, we’ve got you covered.
Frequently Asked Contaminant Questions
What is arsenic in drinking water, and how do I remove it?
Arsenic is a naturally occurring element that can be toxic at high levels. It enters water from natural deposits or agricultural runoff. A reverse osmosis system or specialized filtration from Culligan can effectively reduce arsenic levels.
How can I tell if my water has PFAS or PFOA?
PFAS are “forever chemicals” that don’t break down easily. If you’re near a military base or industrial site, your water could be at risk. Culligan offers filtration systems designed to target PFAS. You can learn more in our blog here.
What causes sulfur or a rotten egg smell in my water?
The rotten egg odor typically comes from hydrogen sulfide gas. Culligan’s specialized filtration can neutralize the smell and improve taste.
Is fluoride in Ventura’s water safe?
Fluoride is added for dental health, but excessive levels or sensitivity can prompt homeowners to seek removal. Culligan’s reverse osmosis systems can reduce fluoride levels effectively. You can learn more in our blog here.
What are HAA5 contaminants, and why should I care?
HAA5 are disinfection byproducts that can form when chlorine reacts with organic material. Long-term exposure may increase health risks. Culligan filtration systems can help remove these byproducts.
Is lead still a concern in household plumbing?
Yes, especially in older Ventura homes with legacy copper or lead piping. Lead can leach into water. Culligan filters certified for lead removal can help protect your family.
What is the danger of uranium in my well water?
Uranium is radioactive and poses health risks if consumed over time. Culligan offers solutions that meet EPA guidelines for uranium removal.
How do nitrates enter drinking water, and how are they treated?
Commonly from fertilizers or septic systems, nitrates are dangerous to infants. Reverse osmosis systems are the most effective treatment.
Can chromium-6 still be found in Ventura’s water supply?
Yes. It’s a known carcinogen and was spotlighted in “Erin Brockovich.” Culligan’s advanced filtration can help reduce its presence. You can learn more in our blog here.
Are pharmaceuticals in my tap water a real issue?
Yes—trace amounts of medications from pharmaceutical companies can enter water supplies. Culligan’s reverse osmosis systems help reduce these unregulated contaminants.
Frequently Asked Questions About Home & Health
Can hard water affect my skin and hair?
Yes. Hard water can lead to dryness, irritation, and dull hair. A Culligan softener can help improve these conditions.
You can learn more in our blog here.
Why does my water taste metallic or bitter in Ventura?
This could be due to low pH, lead, or copper. Culligan systems test and treat the cause of bad taste.
Is drinking filtered water healthier for pets?
Yes—filtered water helps avoid exposure to contaminants that may affect animals, especially those with sensitivities.
Does filtered water help my plants grow better?
Water free of chlorine and excessive salts is better for houseplants and gardens. RO and soft water improve water quality for plants. You can learn more in our blog here.
Can water quality affect my cooking and coffee?
Absolutely. Chlorine, TDS, and sediment can alter taste. Better water equals better flavor and aroma in food and beverages.
Is it safe to drink water with mercury in it?
No—mercury is highly toxic. Culligan filtration systems can remove heavy metals including mercury. You can learn more in our blog here.
Can water contaminants make me sick?
Yes. Contaminants like bacteria, viruses, or nitrates can cause acute and chronic health issues. Testing is essential.
Can drinking water help my allergies Ventura?
Your homes drinking water may affect your allergies in certain locations. You can learn more in our blog here.
Why is my dishwasher leaving spots even after a rinse?
That’s a sign of hard water. A Culligan softener can eliminate mineral buildup and improve cleaning results.
Can children be more affected by water contaminants?
Yes—kids are more sensitive to lead, nitrates, and other toxins. Proper filtration is key to their health and development.
Do I need a whole-house water system or just a kitchen filter?
It depends on your needs. A whole-home system tackles contaminants at every tap, while a kitchen filter improves drinking water only.
Frequently Asked Water Treatment Questions in Ventura
Do I need a water treatment system if I use city water?
Yes—city water may still contain chlorine, heavy metals, or old pipe contaminants. Water treatment improves both safety and taste.
What does a water softener do?
It removes calcium and magnesium to prevent scale buildup in pipes, extend appliance life, and improve soap efficiency. You can learn more about limescale buildup in our blog here.
How do I know if I have hard water in Ventura?
Common signs of hard water include white spots on dishes, soap scum, dry skin, and scale buildup on faucets.
What is reverse osmosis, and how does it clean water?
Reverse osmosis forces water through a membrane to remove contaminants like arsenic, nitrates, and PFAS.
Can water filtration systems remove chlorine smell and taste?
Yes. Culligan’s activated carbon filters are designed to eliminate chlorine odors and improve water’s overall flavor.
You can learn more in our blog here.
What system removes iron or rusty stains in my water?
A Culligan Iron-Cleer® filter removes iron and manganese to prevent stains in sinks, tubs, and laundry.
How do total dissolved solids (TDS) affect water quality?
High TDS can cause bad taste, mineral buildup, and poor appliance performance. RO systems reduce TDS effectively.
Can I treat acidic or low-pH water?
Yes. Acidic water can corrode pipes and cause metallic taste. Culligan offers pH-neutralizing systems.
Do I need a water softener or a water filter—or both?
If your water has mineral hardness and contaminants, a combined solution may be ideal. Culligan systems are customizable.
You can learn more in our blog here.
Is Ventura well water safe without treatment?
No. It can contain bacteria, arsenic, or radium. Regular testing and treatment with Culligan systems ensure safety.
Is ozone water treatment effective?
Yes, ozone is a powerful oxidizer that neutralizes various contaminants without chemicals. It’s an effective and eco-friendly water treatment method. You can learn more in our blog here.
Can water treatment systems improve appliance efficiency?
Absolutely. By reducing scale and sediment, water treatment systems help appliances operate more efficiently and last longer.
Frequently Asked Culligan of Ventura Questions
How do I schedule a free water test with Culligan of Ventura?
You can request a free water test online or by phone. A Culligan expert will visit your home and test for hardness, pH, and contaminants.
Does Culligan offer solutions for copper pipe corrosion?
Yes. Corrosive water can damage copper piping. Culligan neutralizers can protect your plumbing and fixtures.
Are Culligan filters certified for lead and PFAS removal?
Yes. Culligan offers NSF-certified filters for both lead and PFAS, tested for compliance with California standards.
What areas does Culligan of Ventura serve?
Culligan of Ventura serves Ventura County, including Oxnard, Camarillo, Thousand Oaks, and Simi Valley.
How often should I replace my Culligan filters?
Filter replacement frequency depends on water quality and usage, but Culligan systems often include service reminders and maintenance plans.
Can Culligan of Ventura help reduce radium in my drinking water?
Yes. Culligan offers systems designed to target radioactive elements like radium and uranium.
What is the cost of installing a Culligan water softener?
Cost varies by home size, water quality, and system needs. Culligan offers free consultations and flexible pricing options. You can learn more in our blog here.
Can I rent a Culligan system instead of buying?
Yes. Culligan of Ventura offers both rental and purchase options to suit your needs and budget.
Does Culligan of Ventura service and maintain their systems?
Yes. Culligan offers professional installation and regular service to ensure your system performs optimally.
What makes Culligan of Ventura different from other water companies?
Culligan has been a trusted name for decades, offering local expertise, certified systems, and excellent customer service. You can learn more about Culligan in our blog here.
Does Culligan offer bottled water delivery?
Yes, we offer convenient bottled water delivery services throughout Ventura County. Explore our delivery options here: Bottled Water Delivery Services
Are there any current promotions?
We frequently offer special deals on our products and services. Check out our latest promotions here: Water Softener Deals
Still Have Questions About Your Water?
Water quality can vary from home to home—even within Ventura. If you didn’t find the answer you were looking for above, our local Culligan team is here to help. From testing for contaminants to installing custom filtration systems, we’re dedicated to finding the best solution for your water. Contact us today to schedule your free in-home water test or explore more tips on our Culligan of Ventura blog.
Solutions
Suggested Products

The Aquasential® Smart Reverse Osmosis Water Filter (RO)
- 7 stages of filtration and 12 filter options
- Certified for reduction of 58 contaminants
- 2-in-1 sediment and carbon filter screens out sediment and particles
- Can alert you and your dealer when service or filter replacements are needed

Aquasential™ Smart High Efficiency Whole House Water Filters
Reduce sediments in your water and contaminants that cause your water to appear, taste, and smell unpleasant. Your system can also lessen the taste and odor of chlorine, and prevent pipe damage and staining from low pH water. Additional customizations include:
- Culligan® Filtr-Cleer® Water Filters – Reduces Sediment Problems
- Culligan® Cullar® Water Filters – Reduces Taste and Odor Problems
- Culligan® Cullneu Water Filters – Reduces Acid Problems
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