Diamond K | SKU: OG101

Bulk Diamond K Gypsum - Solution Grade

Rated 5.0 out of 5

Based on 108 ratings

$15.00

Shipping calculated at checkout.

Size

50 lb 2000 lb

Product variants

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Delivery and Shipping

BuildASoil Shipping Policy

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Notice: Each product page displays accurate estimated delivery windows based on real-time fulfillment and carrier schedules.

📦 Shipping Options

BuildASoil Shipping: Our complimentary shipping method for qualifying orders. We choose the most cost-effective carrier and shipping method. Delivery may take up to 10 business days. Most items qualify when you purchase two or more eligible products. Some qualify individually.
Standard Shipping: A paid option where we ship using standard ground services.
Standard Shipping: Rushed Out the Door! Includes everything in Standard Shipping, but adds on same day order processing (not guaranteed).
Get It Fast: Our expedited service. Orders are shipped with 2-3 day transit times and are prioritized for fulfillment, with most leaving the same business day (not guaranteed).
Overnight It: Ships via overnight service with immediate fulfillment for urgent deliveries.
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Pickup at Factory Store – Available Within 24 Hours! Select this option to pick up your order at our factory store. We'll notify you when it's ready. Bring your order confirmation and a valid ID.

Option	Cost	Transit Speed	Fulfillment Speed	Notes
BuildASoil Shipping	Free	Up to 10 business days	Standard	Free on any eligible items; ships at our discretion
Standard Shipping	Paid	3-7 business Days	Standard	Standard handling and transit
Standard Shipping: Rushed Out the Door!	Paid (slightly more)	3-7 business Days	Same Day	Fast handling out the door with standard transit
Get It Fast	Higher	2–3 business days	Same Day	Fast handling and transit
Overnight It	Highest	1 business day	ASAP	Fastest possible option
Pickup at Factory Store	Free	N/A	Ready In 24hrs	Local pickup option
FedEx Freight Economy	Varies by order	2–9 business days (varies)	Varies	For large or heavy orders
FedEx Freight Priority	Varies by order	2–7 business days (faster)	Varies	For large or heavy orders

🚚 Carriers Used

We ship with FedEx, UPS, and USPS. Carrier preference is not guaranteed unless explicitly communicated to us.

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🛡️ Shipping Protection

This low-cost optional add-on at checkout insures your shipment against loss, theft, and damage. Claims are fast-tracked for resolution or replacement.

Even with protection, we encourage submitting photos, videos, and documentation to assist our carrier claims process.

📋 Claims Policy

All claims must be submitted via support@buildasoil.com. Phone-based claims are not accepted.

Required Documentation:

Issue description
Photos/videos of damage, missing or incorrect items
Images of packaging and labels

Do not discard packaging or damaged items—carriers may require inspection.

Claim Deadlines

Damage / Missing Items: Within 5 business days of delivery
Incorrect Products: Within 30 days of delivery
Lost or Misdelivered Packages: Within 30 days of shipment

⚠️ Responsibility Disclaimer

Once an order leaves our facility, we are not liable for delays, damage, or misdelivery caused by the carrier. We assist with claims but final decisions rest with the carrier.

We have zero tolerance for mistreatment of delivery drivers. Verified misconduct may result in cancellation and refund of your order minus shipping costs.

Description

Premium 97 Solution Grade Diamond Gypsum

The first step in building potting soil or in building native soil is to get the calcium right!

Gypsum is Calcium Sulfate and is excellent calcium source for no-till growers. The added sulfur helps keep terps high and the soil balanced.

EXTREMELY PURE

97% Calcium sulfate dihydrate, the purest available on the market.

HIGHLY SOLUBLE

97% passing 200 mesh and 92% passing 325 mesh means it goes into solution faster and more completely than other sources.

IMPROVES LOW – SOLUTE WATER

Adds minerals to pure water to improve water penetration into soil.

LOWER APPLICATION RATES

Other western gypsum sources can require up to 4x more product to get the same results.

HELPS RECLAIM SODIC SOILS

Ultra-soluble calcium to replace and leach sodium in the soil.

How to Use

Use at lower rates (50-400 lb/acre) than non-soluble gypsum, but more frequently
For foliar rates use 1-10 lb/acre
Can be used for fertigation
1-2 tablespoons per 5 gallons for container gardening/flush
When irrigating with gypsum, it's best used in small amounts more often rather than forcing a large amount at at time.

Stock Solution & Injector Setup

Gypsum is only slightly soluble. A true “solution” can’t reach the strength you need, so this is a slurry. Keep it agitated and filtered.

Stock mix (works well as a slurry)

8 oz gypsum (by weight) per 1 gallon of water.

8 oz = 226.8 g per gallon of stock.

How much finished water will that treat at 2 g/gal?

226.8 g ÷ 2 g/gal = ~113.4 gallons finished water.

Using an injector

Target dose is 2 grams per gal finished.

Required stock strength by ratio:

1:100 → need 200 g/gal in stock (= ~7.06 oz/gal)

Adding 8 oz/gal stock gives ~2.27 g/gal finished—slightly “hot” but close and totally fine to use as a go to ratio.

If you want it exact you will want to weigh your gypsum in house and extrapolate that way.

1:128 (common Dosatron) → need 256 g/gal (= ~9.03 oz/gal)

For 1:128, use ~9.0 oz/gal stock to land right at 2 g/gal finished.

Because the numbers are close you could just use the 8 Ounces per gallon but the level of precision is up to you.

Practical tips for slurry injection

Agitate constantly if possible.
Keep the injector pickup 2–3" above the bottom so it draws well-suspended slurry, not settled silt.
Strain the slurry into the stock tank (paint strainer bag) and keep the inline 200-mesh filter clean.
Don’t co-tank with phosphate-heavy or carbonate/alkaline products (can precipitate).
Flush the system with clear water after dosing

Questions?

We are here to help and our entire staff knows how to grow. Just reach out via chat, email or even phone. We are passionate about growing and want you to succeed.