Predictika · Stormwater chamber systems
An AI sales agent prepares a subsurface stormwater system built from StormTech MC-3500 or MC-7200 chambers: rows, chambers, end caps, cover, stone, row spacing, inlet flow and the installed storage it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the design rules ADS publishes and returns a verdict, every reason and the figures it computed.
This validator models systems built from StormTech MC-3500 or MC-7200 chambers and their end caps, based on the design rules ADS publishes, not just the scenarios shown below.
Any MC-3500 or MC-7200 system that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (ADS does not publish a price list, so this page shows no price build-up), other StormTech chambers, manifold and outlet sizing, foundation depth by soil bearing capacity, geotextile, isolator rows and installation details.
8 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch
Illustrative agent statement. The validator receives the structured request below.
Proposing agent: AI sales agent (scripted)
Before sending, the agent must call Recorded run
What this means
Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.
| What the validator caught | Typical rules-based CPQ | Predictika |
|---|---|---|
| Installed storage that must equal chambers and end caps times the listed volume | Only with care The storage is a derived figure; a rule can compare a stated figure with it, but each part has its own volume and the formulas must be kept in step with the manual. | The stated storage is a field in the request and is compared with the computed storage on every call. |
| Limits that depend on the chamber model | Only with care Row spacing, maximum cover and the 24 inch inlet allowance differ between the MC-3500 and MC-7200, so each needs its own rule per model. | The chamber and each measurement arrive in one request and are checked together. |
| Cover that depends on the surface | Only with care The minimum changes with a paved or unpaved surface, so the rule has to look at two choices on different lines. | Surface and cover are compared on every call, in any order. |
| Inlet flow that depends on pipe size, chamber and scour fabric | Only with workarounds The allowance depends on the pipe, the chamber and the fabric length at once, so it takes a cross-line rule that interacts with the others. | Pipe, chamber, flow and fabric length are in one request and checked with the rest. |
| Every problem returned in one answer | Only with workarounds Rules tend to fire as the quote is saved or a step is completed, so an engineer often fixes one error and meets the next. | All findings come back together, whatever order the choices arrived in. |
Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.
| 1 | The quote has 23 inches of cover over the chambers; the selected surface needs at least 24 inches. |
| 2 | The quote has 29 inches of cover over the chambers; the selected surface needs at least 30 inches. |
| 3 | The quote has 97 inches of cover over the chambers; this chamber allows at most 96 inches. |
| 4 | The quote has 85 inches of cover over the chambers; this chamber allows at most 84 inches. |
| 5 | The quote has 8 inches of foundation stone under the chambers; at least 9 inches is required. |
| 6 | The quote uses 12 inches of foundation stone; the storage figures assume 9 inches, so an engineer should confirm the storage. |
| 7 | The quote has 11 inches of stone above the chambers; at least 12 inches is required. |
| 8 | The quote spaces rows 5 inches apart; this chamber needs at least 6 inches between parallel rows. |
| 9 | The quote spaces rows 8 inches apart; this chamber needs at least 9 inches between parallel rows. |
| 10 | The quote spaces rows 6 inches apart; this chamber needs at least 9 inches between parallel rows. |
| 11 | The quote separates perpendicular beds by 35 inches; at least 36 inches is required. |
| 12 | The inlet scour protection fabric is 173 inches long; the inlet flow allowances assume at least 174 inches (14.5 feet) from the end cap. |
| 13 | The quote sends 71 liters a second into the inlet; the selected pipe allows 70 liters a second. |
| 14 | The quote sends 100 liters a second into the inlet; the selected pipe allows 99 liters a second. |
| 15 | The quote sends 157 liters a second into the inlet; the selected pipe allows 156 liters a second. |
| 16 | The quote sends 242 liters a second into the inlet; the selected pipe allows 241 liters a second. |
The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.
The agent's request. Please quote a stormwater system of MC-3500 chambers: 18 rows of 12 chambers with 36 end caps, for a project that needs 39,000 cubic feet of storage. The chambers sit under 26 inches of cover below an unpaved surface, with 9 inches of foundation stone, 10 inches of stone above them and rows spaced 6 inches apart. The inlet is a 24 inch pipe carrying 200 liters a second, with 174 inches of scour protection fabric. The quote states 39,423.6 cubic feet of installed storage. It is ready to send.
Verdict: Blocked.
The agent's request. Please quote a stormwater system of MC-3500 chambers: 18 rows of 12 chambers with 36 end caps, for a project that needs 39,000 cubic feet of storage. The chambers sit under 30 inches of cover below an unpaved surface, with 9 inches of foundation stone, 12 inches of stone above them and rows spaced 6 inches apart. The inlet is a 24 inch pipe carrying 200 liters a second, with 174 inches of scour protection fabric. The quote states 39,423.6 cubic feet of installed storage. It is ready to send.
Verdict: Allowed.
The agent's request. Please quote a stormwater system of MC-7200 chambers: 12 rows of 10 chambers with 24 end caps, for a project that needs 34,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 9 inches of foundation stone, 12 inches of stone above them and rows spaced 6 inches apart. The inlet is a 24 inch pipe carrying 300 liters a second, with 174 inches of scour protection fabric. The quote states 32,076.0 cubic feet of installed storage. It is ready to send.
Verdict: Blocked.
The agent's request. Please quote a stormwater system of MC-7200 chambers: 12 rows of 10 chambers with 24 end caps, for a project that needs 34,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 9 inches of foundation stone, 12 inches of stone above them and rows spaced 9 inches apart. The inlet is a 24 inch pipe carrying 250 liters a second, with 174 inches of scour protection fabric. The quote states 32,076.0 cubic feet of installed storage. It is ready to send.
Verdict: Blocked.
The agent's request. Please quote a stormwater system of MC-7200 chambers: 12 rows of 10 chambers with 24 end caps, for a project that needs 34,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 9 inches of foundation stone, 12 inches of stone above them and rows spaced 9 inches apart. The inlet is a 24 inch pipe carrying 250 liters a second, with 174 inches of scour protection fabric. The quote states 34,843.2 cubic feet of installed storage. It is ready to send.
Verdict: Allowed.
The agent's request. Please quote a stormwater system of MC-3500 chambers: 8 rows of 10 chambers with 16 end caps, for a project that needs 14,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 7 inches of foundation stone, 12 inches of stone above them and rows spaced 6 inches apart. The inlet is an 18 inch pipe carrying 150 liters a second, with 120 inches of scour protection fabric. The quote states 14,721.6 cubic feet of installed storage. It is ready to send.
Verdict: Blocked.
The agent's request. Please quote a stormwater system of MC-3500 chambers: 8 rows of 10 chambers with 16 end caps, for a project that needs 14,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 12 inches of foundation stone, 12 inches of stone above them and rows spaced 6 inches apart. The inlet is an 18 inch pipe carrying 150 liters a second, with 174 inches of scour protection fabric. The quote states 14,721.6 cubic feet of installed storage. It is ready to send.
Verdict: Needs approval.
The agent's request. Please quote a stormwater system of MC-3500 chambers: 8 rows of 10 chambers with 16 end caps, for a project that needs 14,000 cubic feet of storage. The chambers sit under 36 inches of cover below a paved surface, with 9 inches of foundation stone, 12 inches of stone above them and rows spaced 6 inches apart. The inlet is an 18 inch pipe carrying 150 liters a second, with 174 inches of scour protection fabric. The quote states 14,721.6 cubic feet of installed storage. It is ready to send.
Verdict: Allowed.
The text of the narrated walkthrough, step by step.