Frequently Asked Questions

Grid Harmony is an environmental marketplace focused on helping homes and businesses reduce their reliance on traditional utilities.

We currently offer rainwater harvesting tanks and cisterns, with plans to expand into rainwater pumps, solar energy, and small-scale wind systems.

Our goal is to make sustainable living more accessible, affordable, and harmonious with nature.

We’re proudly based in Washington State, surrounded by the natural beauty of the Pacific Northwest that inspires our mission to conserve and protect our planet’s resources.

We’re expanding into complementary products that help you live more sustainably — from rainwater pumps and filtration systems, to solar panels and inverters, as well as small wind turbines.

You can reach us by phone at (425) 600-3393, email at support@gridharmony.com, or through live chat on our website.

Yes — cancellations requested before shipment qualify for a full refund. If your order has already shipped, it will instead follow our returns process.

We accept returns within 30 days of delivery for unused items in like-new condition and with original packaging. Items that are defective, damaged, or incorrect qualify for a free return shipping label.

If your package shows visible damage, make note of it with the carrier before accepting delivery — or refuse delivery if the damage appears severe.

If you discover damage after unpacking, take photos and email them to support@gridharmony.com within 24 hours so we can help arrange a replacement or refund.

Grid Harmony covers return shipping costs for defective, damaged, or incorrect items. For all other returns, customers are responsible for return shipping.

Warranty coverage depends on the manufacturer of each product. Warranty details can be found on the product page, or you can reach out to us for specifics.

Refunds are issued to your original payment method within 7 days of processing. You’ll receive an email confirmation once it’s been completed.

Yes! We’re proud to offer free shipping on all orders within the continental United States. It’s our way of sharing in the cost of making a positive environmental impact.

We currently ship anywhere in the continental U.S. Unfortunately, we’re not yet able to ship to Alaska, Hawaii, U.S. territories, APO/DPO/FPO addresses, P.O. boxes, or international destinations.

In-stock items typically ship within three business days after purchase. Once your order ships, you’ll receive an email with tracking details within 24 hours of departure.

Yes — depending on size and weight, your order may ship via freight or ground service. Large tanks often arrive on a pallet and may require scheduling a delivery time with the carrier.

Rainwater harvesting tanks and cisterns are used to collect and store rainwater, which can then be used for irrigation, gardening, washing vehicles, and, with proper treatment, even for drinking.

Tank sizes vary widely, ranging from a few hundred to several thousand gallons, depending on the intended use, available storage space, and local rainfall.

Yes, with the right filtration and disinfection, rainwater can be made potable.

Installation typically involves connecting gutter downspouts to the tank, setting up an overflow system, and potentially installing a pump to provide water pressure.

Maintenance includes periodic cleaning, checking for leaks, inspecting filters, and ensuring gutters and downspouts are free from debris.

Rainwater harvesting reduces reliance on municipal water sources, helps conserve water, decreases stormwater runoff, and promotes sustainable resource use.

Yes, rainwater harvesting can lower water bills by reducing the need for municipal or well water, especially in areas with high water costs or usage restrictions.

Laws vary by region. In many places, rainwater harvesting is encouraged or permitted, but some areas may have restrictions or guidelines on usage and storage.

Yes, rainwater tanks can often be connected in series or parallel configurations to increase overall storage capacity.

With proper maintenance, rainwater tanks and cisterns can last 20-30 years or more, depending on the material and exposure conditions.

Rainwater tanks are typically made from materials like plastic (polyethylene), fiberglass, concrete, or metal, each with its benefits in terms of durability and application.

The amount of collectable rainwater depends on local rainfall levels and the size of the catchment area (usually a roof). There are calculators and formulas to estimate potential water yield based on these factors.

Pumps are not always necessary but may be used to increase water pressure if the tank is positioned at a lower elevation than the usage point.

Yes, rainwater harvesting systems can be used in cold climates. Proper insulation and winterization techniques can prevent freezing and ensure system longevity.

Best practices include using leaf screens on gutters, installing first-flush diverters, covering the tank to prevent debris, and regularly cleaning filters.